diff --git a/docs/adapter.html b/docs/adapter.html
index 9656fbe99..5cfdc927f 100644
--- a/docs/adapter.html
+++ b/docs/adapter.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Adapter - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Adapter - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/array.html b/docs/array.html
index 180357d00..57b23c77e 100644
--- a/docs/array.html
+++ b/docs/array.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Array - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Array - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/beginner.html b/docs/beginner.html
index 65dbc5b9e..101a5db4c 100644
--- a/docs/beginner.html
+++ b/docs/beginner.html
@@ -14,12 +14,13 @@
     <meta charset="utf-8">
     <meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less.">
     <meta name="keywords" content="javascript, snippets, code, programming">
-    <meta name="author" content="Stefan Feješ (ns.fejes.stefan@gmail.com)">
+    <meta name="author" content="Stefan Feješ (stefanfejes.com)">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#111">
     <meta property="og:title" content="30 seconds of code">
     <meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less." />
     <meta property="og:type" content="website" /><meta property="og:image" content="favicon.png">
-    <link rel="icon" type="image/png" href="favicon.png">
+    <link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json">
     <script>
       function scrollToTop(){
         const c = document.querySelector('html').scrollTop;
diff --git a/docs/browser.html b/docs/browser.html
index b740bcf2a..11df27a04 100644
--- a/docs/browser.html
+++ b/docs/browser.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Browser - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Browser - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/date.html b/docs/date.html
index 83e57e775..8992ea30a 100644
--- a/docs/date.html
+++ b/docs/date.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Date - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Date - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/function.html b/docs/function.html
index e1335f9eb..f341313b6 100644
--- a/docs/function.html
+++ b/docs/function.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Function - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Function - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/index.html b/docs/index.html
index e4fe50ffb..7f33710ab 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,10 +16,11 @@
     <meta name="keywords" content="javascript, snippets, code, programming">
     <meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#111">
     <meta property="og:title" content="30 seconds of code">
     <meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less." />
     <meta property="og:type" content="website" /><meta property="og:image" content="favicon.png">
-    <link rel="icon" type="image/png" href="favicon.png">
+    <link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json">
   </head>
   <body>
     <a href="https://github.com/Chalarangelo/30-seconds-of-code" class="github-corner" aria-label="View source on Github"><svg width="56" height="56" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: fixed; top: 0; border: 0; right: 0; z-index: 1000" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
@@ -73,58 +74,40 @@
       <h2 class="index-section">Today's picks</h2>
       <p>Our sophisticated robot helpers pick new snippets from our collection daily, so that you can discover new snippets to enhance your projects:</p>
       <div id="pick-slider">
-        <button class="next"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-right" aria-hidden="true"><path fill-rule="evenodd" d="M7.5 8l-5 5L1 11.5 4.75 8 1 4.5 2.5 3l5 5z"/></svg></button>
-      <button class="previous"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-left" aria-hidden="true"><path fill-rule="evenodd" d="M6 3l1.5 1.5L3.75 8l3.75 3.5L6 13 1 8l5-5z"/></svg></button>
-      <div class="card fluid pick selected"><h3 id="rgbtohex.md" class="section double-padded">RGBToHex</h3><div class="section double-padded">
-<p>Converts the values of RGB components to a color code.</p>
-<p>Convert given RGB parameters to hexadecimal string using bitwise left-shift operator (<code>&lt;&lt;</code>) and <code>toString(16)</code>, then <code>String.padStart(6,'0')</code> to get a 6-digit hexadecimal value.</p>
-<pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">RGBToHex</span> <span class="token operator">=</span> <span class="token punctuation">(</span>r<span class="token punctuation">,</span> g<span class="token punctuation">,</span> b<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">((</span>r <span class="token operator">&lt;&lt;</span> <span class="token number">16</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token punctuation">(</span>g <span class="token operator">&lt;&lt;</span> <span class="token number">8</span><span class="token punctuation">)</span> <span class="token operator">+</span> b<span class="token punctuation">).</span><span class="token function">toString</span><span class="token punctuation">(</span><span class="token number">16</span><span class="token punctuation">).</span><span class="token function">padStart</span><span class="token punctuation">(</span><span class="token number">6</span><span class="token punctuation">,</span> <span class="token string">'0'</span><span class="token punctuation">);</span>
-</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">RGBToHex</span><span class="token punctuation">(</span><span class="token number">255</span><span class="token punctuation">,</span> <span class="token number">165</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">);</span> <span class="token comment">// 'ffa501'</span>
+        <button class="next" aria-label="next"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-right" aria-hidden="true"><path fill-rule="evenodd" d="M7.5 8l-5 5L1 11.5 4.75 8 1 4.5 2.5 3l5 5z"/></svg></button>
+      <button class="previous" aria-label="previous"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-left" aria-hidden="true"><path fill-rule="evenodd" d="M6 3l1.5 1.5L3.75 8l3.75 3.5L6 13 1 8l5-5z"/></svg></button>
+      <div class="card fluid pick selected"><h3 id="bytesize.md" class="section double-padded">byteSize</h3><div class="section double-padded">
+<p>Returns the length of a string in bytes.</p>
+<p>Convert a given string to a <a href="https://developer.mozilla.org/en-US/docs/Web/API/Blob"><code>Blob</code> Object</a> and find its <code>size</code>.</p>
+<pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">byteSize</span> <span class="token operator">=</span> str <span class="token operator">=></span> <span class="token keyword">new</span> <span class="token class-name">Blob</span><span class="token punctuation">([</span>str<span class="token punctuation">]).</span>size<span class="token punctuation">;</span>
+</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">byteSize</span><span class="token punctuation">(</span><span class="token string">'😀'</span><span class="token punctuation">);</span> <span class="token comment">// 4</span>
+<span class="token function">byteSize</span><span class="token punctuation">(</span><span class="token string">'Hello World'</span><span class="token punctuation">);</span> <span class="token comment">// 11</span>
 </pre>
-<button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid pick"><h3 id="throttle.md" class="section double-padded">throttle</h3><div class="section double-padded">
-<p>Creates a throttled function that only invokes the provided function at most once per every <code>wait</code> milliseconds</p>
-<p>Use <code>setTimeout()</code> and <code>clearTimeout()</code> to throttle the given method, <code>fn</code>.
-Use <code>Function.apply()</code> to apply the <code>this</code> context to the function and provide the necessary <code>arguments</code>.
-Use <code>Date.now()</code> to keep track of the last time the throttled function was invoked.
-Omit the second argument, <code>wait</code>, to set the timeout at a default of 0 ms.</p>
-<pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">throttle</span> <span class="token operator">=</span> <span class="token punctuation">(</span>fn<span class="token punctuation">,</span> wait<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
-  <span class="token keyword">let</span> inThrottle<span class="token punctuation">,</span> lastFn<span class="token punctuation">,</span> lastTime<span class="token punctuation">;</span>
-  <span class="token keyword">return function</span><span class="token punctuation">() {</span>
-    <span class="token keyword">const</span> context <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">,</span>
-      args <span class="token operator">=</span> arguments<span class="token punctuation">;</span>
-    <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>inThrottle<span class="token punctuation">) {</span>
-      fn<span class="token punctuation">.</span><span class="token function">apply</span><span class="token punctuation">(</span>context<span class="token punctuation">,</span> args<span class="token punctuation">);</span>
-      lastTime <span class="token operator">=</span> Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">();</span>
-      inThrottle <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;
-    }</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
-      <span class="token function">clearTimeout</span><span class="token punctuation">(</span>lastFn<span class="token punctuation">);</span>
-      lastFn <span class="token operator">=</span> <span class="token function">setTimeout</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">() {</span>
-        <span class="token keyword">if</span> <span class="token punctuation">(</span>Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">()</span> <span class="token operator">-</span> lastTime <span class="token operator">>=</span> wait<span class="token punctuation">) {</span>
-          fn<span class="token punctuation">.</span><span class="token function">apply</span><span class="token punctuation">(</span>context<span class="token punctuation">,</span> args<span class="token punctuation">);</span>
-          lastTime <span class="token operator">=</span> Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">();
-        }
-      },</span> wait <span class="token operator">-</span> <span class="token punctuation">(</span>Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">()</span> <span class="token operator">-</span> lastTime<span class="token punctuation">));
-    }
-  };
-};</span>
-</pre><label class="collapse">Show examples</label><pre class="language-js">window<span class="token punctuation">.</span><span class="token function">addEventListener</span><span class="token punctuation">(</span>
-  <span class="token string">'resize'</span><span class="token punctuation">,</span>
-  <span class="token function">throttle</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span>evt<span class="token punctuation">) {</span>
-    console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>window<span class="token punctuation">.</span>innerWidth<span class="token punctuation">);</span>
-    console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>window<span class="token punctuation">.</span>innerHeight<span class="token punctuation">);
-  },</span> <span class="token number">250</span><span class="token punctuation">)
-);</span> <span class="token comment">// Will log the window dimensions at most every 250ms</span>
+<button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid pick"><h3 id="hashnode.md" class="section double-padded">hashNode</h3><div class="section double-padded">
+<p>Creates a hash for a value using the <a href="https://en.wikipedia.org/wiki/SHA-2">SHA-256</a> algorithm. Returns a promise.</p>
+<p>Use <code>crypto</code> API to create a hash for the given value.</p>
+<pre class="language-js"><span class="token keyword">const</span> crypto <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'crypto'</span><span class="token punctuation">);</span>
+<span class="token keyword">const</span> <span class="token function-variable function">hashNode</span> <span class="token operator">=</span> val <span class="token operator">=></span>
+  <span class="token keyword">new</span> <span class="token class-name">Promise</span><span class="token punctuation">(</span>resolve <span class="token operator">=></span>
+    <span class="token function">setTimeout</span><span class="token punctuation">(
+      ()</span> <span class="token operator">=></span>
+        <span class="token function">resolve</span><span class="token punctuation">(</span>
+          crypto
+            <span class="token punctuation">.</span><span class="token function">createHash</span><span class="token punctuation">(</span><span class="token string">'sha256'</span><span class="token punctuation">)
+            .</span><span class="token function">update</span><span class="token punctuation">(</span>val<span class="token punctuation">)
+            .</span><span class="token function">digest</span><span class="token punctuation">(</span><span class="token string">'hex'</span><span class="token punctuation">)
+        ),</span>
+      <span class="token number">0</span>
+    <span class="token punctuation">)
+  );</span>
+</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">hashNode</span><span class="token punctuation">(</span>JSON<span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">({</span> a<span class="token punctuation">:</span> <span class="token string">'a'</span><span class="token punctuation">,</span> b<span class="token punctuation">: [</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">],</span> foo<span class="token punctuation">: {</span> c<span class="token punctuation">:</span> <span class="token string">'bar'</span> <span class="token punctuation">} })).</span><span class="token function">then</span><span class="token punctuation">(</span>console<span class="token punctuation">.</span>log<span class="token punctuation">);</span> <span class="token comment">// '04aa106279f5977f59f9067fa9712afc4aedc6f5862a8defc34552d8c7206393'</span>
 </pre>
-<button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid pick"><h3 id="tocurrency.md" class="section double-padded">toCurrency</h3><div class="section double-padded">
-<p>Take a number and return specified currency formatting.</p>
-<p>Use <code>Intl.NumberFormat</code> to enable country / currency sensitive formatting.</p>
-<pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">toCurrency</span> <span class="token operator">=</span> <span class="token punctuation">(</span>n<span class="token punctuation">,</span> curr<span class="token punctuation">,</span> LanguageFormat <span class="token operator">=</span> undefined<span class="token punctuation">)</span> <span class="token operator">=></span>
-  Intl<span class="token punctuation">.</span><span class="token function">NumberFormat</span><span class="token punctuation">(</span>LanguageFormat<span class="token punctuation">, {</span> style<span class="token punctuation">:</span> <span class="token string">'currency'</span><span class="token punctuation">,</span> currency<span class="token punctuation">:</span> curr <span class="token punctuation">}).</span><span class="token function">format</span><span class="token punctuation">(</span>n<span class="token punctuation">);</span>
-</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">toCurrency</span><span class="token punctuation">(</span><span class="token number">123456.789</span><span class="token punctuation">,</span> <span class="token string">'EUR'</span><span class="token punctuation">);</span> <span class="token comment">// €123,456.79  | currency: Euro | currencyLangFormat: Local</span>
-<span class="token function">toCurrency</span><span class="token punctuation">(</span><span class="token number">123456.789</span><span class="token punctuation">,</span> <span class="token string">'USD'</span><span class="token punctuation">,</span> <span class="token string">'en-us'</span><span class="token punctuation">);</span> <span class="token comment">// $123,456.79  | currency: US Dollar | currencyLangFormat: English (United States)</span>
-<span class="token function">toCurrency</span><span class="token punctuation">(</span><span class="token number">123456.789</span><span class="token punctuation">,</span> <span class="token string">'USD'</span><span class="token punctuation">,</span> <span class="token string">'fa'</span><span class="token punctuation">);</span> <span class="token comment">// ۱۲۳٬۴۵۶٫۷۹ ؜$ | currency: US Dollar | currencyLangFormat: Farsi</span>
-<span class="token function">toCurrency</span><span class="token punctuation">(</span><span class="token number">322342436423.2435</span><span class="token punctuation">,</span> <span class="token string">'JPY'</span><span class="token punctuation">);</span> <span class="token comment">// ¥322,342,436,423 | currency: Japanese Yen | currencyLangFormat: Local</span>
-<span class="token function">toCurrency</span><span class="token punctuation">(</span><span class="token number">322342436423.2435</span><span class="token punctuation">,</span> <span class="token string">'JPY'</span><span class="token punctuation">,</span> <span class="token string">'fi'</span><span class="token punctuation">);</span> <span class="token comment">// 322 342 436 423 ¥ | currency: Japanese Yen | currencyLangFormat: Finnish</span>
+<button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div><div class="card fluid pick"><h3 id="take.md" class="section double-padded">take</h3><div class="section double-padded">
+<p>Returns an array with n elements removed from the beginning.</p>
+<p>Use <code>Array.slice()</code> to create a slice of the array with <code>n</code> elements taken from the beginning.</p>
+<pre class="language-js"><span class="token keyword">const</span> <span class="token function-variable function">take</span> <span class="token operator">=</span> <span class="token punctuation">(</span>arr<span class="token punctuation">,</span> n <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">)</span> <span class="token operator">=></span> arr<span class="token punctuation">.</span><span class="token function">slice</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span> n<span class="token punctuation">);</span>
+</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">take</span><span class="token punctuation">([</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">],</span> <span class="token number">5</span><span class="token punctuation">);</span> <span class="token comment">// [1, 2, 3]</span>
+<span class="token function">take</span><span class="token punctuation">([</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">],</span> <span class="token number">0</span><span class="token punctuation">);</span> <span class="token comment">// []</span>
 </pre>
 <button class="primary clipboard-copy">&#128203;&nbsp;Copy to clipboard</button></div></div>
       <br/>
@@ -159,36 +142,36 @@ Omit the second argument, <code>wait</code>, to set the timeout at a default of
       <h2 class="index-section">Top contributors</h2>
       <div class="row">
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/Chalarangelo.png"/>
+          <img class="section media" src="https://github.com/Chalarangelo.png"/ alt="chalarangelo">
           <a href="https://github.com/Chalarangelo" class="section button">Angelos Chalaris</a>
           </div>
         </div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/fejes713.png"/>
+          <img class="section media" src="https://github.com/fejes713.png"/ alt="fejes713">
           <a href="https://github.com/fejes713" class="section button">Stefan Feješ</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/flxwu.png"/>
+          <img class="section media" src="https://github.com/flxwu.png"/ alt="flxwu">
           <a href="https://github.com/flxwu" class="section button">Felix Wu</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/atomiks.png"/>
+          <img class="section media" src="https://github.com/atomiks.png"/ alt="atomiks">
           <a href="https://github.com/atomiks" class="section button">atomiks</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/kingdavidmartins.png"/>
+          <img class="section media" src="https://github.com/kingdavidmartins.png"/ alt="kingdavidmartins">
           <a href="https://github.com/kingdavidmartins" class="section button">King David Martins</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/kriadmin.png"/>
+          <img class="section media" src="https://github.com/kriadmin.png"/ alt="kriadmin">
           <a href="https://github.com/kriadmin" class="section button">Rohit Tanwar</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/iamsoorena.png"/>
+          <img class="section media" src="https://github.com/iamsoorena.png"/ alt="iamsoorena">
           <a href="https://github.com/iamsoorena" class="section button">Soorena Soleimani</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/skatcat31.png"/>
+          <img class="section media" src="https://github.com/skatcat31.png"/ alt="skatcat31">
           <a href="https://github.com/skatcat31" class="section button">Robert Mennell</a>
           </div></div>
     </div>
@@ -276,6 +259,26 @@ window.onload = function(){
       if ( event.target.classList.contains('collapse') ) {
         event.target.classList = event.target.classList.contains('toggled') ? 'collapse' : 'collapse toggled';
       }
+      else if (event.target.classList.contains('clipboard-copy')) {
+        const text = event.target.parentElement.parentElement.querySelector(':not(pre) + pre').textContent;
+        const textArea = document.createElement("textarea");
+        textArea.value = text.trim();
+        document.body.appendChild(textArea);
+        textArea.select();
+        document.execCommand("Copy");
+        document.body.removeChild(textArea);
+        let tst = document.createElement('div');
+        tst.classList = 'toast';
+        tst.innerHTML = 'Snippet copied to clipboard!';
+        document.body.appendChild(tst);
+        setTimeout(function() {
+          tst.style.opacity = 0;
+          setTimeout(function() {
+            document.body.removeChild(tst);
+          },300);
+        },1700);
+      }
+
     }, false);
 }
 const runCounter = (selector, start, end, increment = 1, duration = 2000) => {
diff --git a/docs/manifest.json b/docs/manifest.json
new file mode 100644
index 000000000..578390978
--- /dev/null
+++ b/docs/manifest.json
@@ -0,0 +1,14 @@
+{
+  "name": "30 seconds of code",
+  "short_name": "30s of code",
+  "start_url": "./index.html",
+  "display": "standalone",
+  "background_color": "#f8f8f8",
+  "theme_color": "#111",
+  "description": "Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.",
+  "icons": [{
+    "src": "favicon.png",
+    "sizes": "128x128",
+    "type": "image/png"
+  }]
+}
diff --git a/docs/math.html b/docs/math.html
index 9731978cb..7897cb4c0 100644
--- a/docs/math.html
+++ b/docs/math.html
@@ -1,4 +1,4 @@
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+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Math - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
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diff --git a/docs/mini.css b/docs/mini.css
index 2ee8661ae..361bfa8a6 100644
--- a/docs/mini.css
+++ b/docs/mini.css
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a:visited{display:block;color:var(--nv-ln-col);border-radius:var(--u-br-r);transition:background 0.3s}nav a:hover,nav a:focus,nav a:visited:hover,nav a:visited:focus{text-decoration:none;background:var(--nv-hv-b-col)}nav .sublink-1{position:relative;margin-left:calc(2 * var(--u-p))}nav .sublink-1:before{position:absolute;left:calc(var(--u-p) - 1 * var(--u-p));top:-.0625rem;content:'';height:100%;border:.0625rem solid var(--nv-br-col);border-left:0}footer{background:var(--ft-b-col);color:var(--ft-f-col);border-top:.0625rem solid var(--ft-br-col);padding:calc(2 * var(--u-p)) var(--u-p);font-size:.875rem}footer a,footer a:visited{color:var(--ft-ln-col)}header.sticky{position:-webkit-sticky;position:sticky;z-index:1101;top:0}footer.sticky{position:-webkit-sticky;position:sticky;z-index:1101;bottom:0}.drawer-toggle:before{display:inline-block;position:relative;vertical-align:bottom;content:'\00a0\2261\00a0';font-family:sans-serif;font-size:1.5em}@media screen and (min-width: 768px){.drawer-toggle:not(.persistent){display:none}}[type="checkbox"].drawer{height:1px;width:1px;margin:-1px;overflow:hidden;position:absolute;clip:rect(0 0 0 0);-webkit-clip-path:inset(100%);clip-path:inset(100%)}[type="checkbox"].drawer+*{display:block;box-sizing:border-box;position:fixed;top:0;width:320px;height:100vh;overflow-y:auto;background:var(--dr-b-col);border:.0625rem solid var(--dr-br-col);border-radius:0;margin:0;z-index:1110;left:-320px;transition:left 0.3s}[type="checkbox"].drawer+* .drawer-close{position:absolute;top:var(--u-m);right:var(--u-m);z-index:1111;width:2rem;height:2rem;border-radius:var(--u-br-r);padding:var(--u-p);margin:0;cursor:pointer;transition:background 0.3s}[type="checkbox"].drawer+* .drawer-close:before{display:block;content:'\00D7';color:var(--dr-cl-col);position:relative;font-family:sans-serif;font-size:2rem;line-height:1;text-align:center}[type="checkbox"].drawer+* .drawer-close:hover,[type="checkbox"].drawer+* .drawer-close:focus{background:var(--dr-hv-b-col)}@media screen and (max-width: 320px){[type="checkbox"].drawer+*{width:100%}}[type="checkbox"].drawer:checked+*{left:0}@media screen and (min-width: 768px){[type="checkbox"].drawer:not(.persistent)+*{position:static;height:100%;z-index:1100}[type="checkbox"].drawer:not(.persistent)+* .drawer-close{display:none}}:root{--mrk-b-col:#424242;--mrk-f-col:#fafafa}mark{background:var(--mrk-b-col);color:var(--mrk-f-col);font-size:.5em;line-height:1em;border-radius:var(--u-br-r);padding:calc(var(--u-p) / 4) calc(var(--u-p) / 2)}mark.inline-block{display:inline-block;font-size:1em;line-height:1.5;padding:calc(var(--u-p) / 2) var(--u-p)}:root{--tst-b-col:#212121;--tst-f-col:#fafafa}.toast{position:fixed;bottom:calc(var(--u-m) * 3);left:50%;transform:translate(-50%, -50%);z-index:1111;color:var(--tst-f-col);background:var(--tst-b-col);border-radius:calc(var(--u-br-r) * 16);padding:var(--u-p) calc(var(--u-p) * 3)}div,main,nav{-webkit-overflow-scrolling:touch}.toast{bottom:calc(var(--u-m) / 2);opacity:1;transition:opacity 0.3s ease-in-out}mark{position:relative;top:-0.25rem;left:0.25rem}mark.secondary{--mrk-b-col:#d32f2f}mark.tertiary{--mrk-b-col:#308732}mark.tag{padding:calc(var(--u-p)/2) var(--u-p);border-radius:1em}code,pre,kbd,code *,pre *,kbd *,code[class*="language-"],pre[class*="language-"]{font-family:Menlo, Consolas, monospace !important}pre{border:0.0625rem solid var(--br-col2);border-radius:var(--u-br-r)}.search{font-size:0.875rem}header h1.logo{margin-top:-0.8rem;text-align:center;position:relative;top:0;transition:top 0.3s;color:#111}h1 a,h1 a:link,h1 a:visited{text-decoration:none;color:#111}h1 a:hover,h1 a:focus,h1 a:link:hover,h1 a:link:focus,h1 a:visited:hover,h1 a:visited:focus{text-decoration:none;color:#111}header #title{position:relative;top:-1rem}@media screen and (max-width: 768px){header #title{display:none}}header{background:linear-gradient(135deg, #ffae27 0%, #de496d 100%)}header h1 small{display:block;font-size:0.875rem;color:#888;margin-top:0.75rem}label#menu-toggle{position:absolute;left:0rem;top:0rem;width:3.4375rem}main{padding:0}:root{--clps-lbl-b-col:#e8e8e8;--clps-lbl-f-col:#212121;--clps-lbl-h-b-col:#f0f0f0;--clps-sel-lbl-b-col:#ececec;--clps-br-col:#ddd;--clps-cnt-b-col:#fafafa;--clps-sel-lbl-br-col:#0277bd}label.collapse{width:100%;display:inline-block;cursor:pointer;box-sizing:border-box;transition:background 0.3s;color:var(--clps-lbl-f-col);background:var(--clps-lbl-b-col);border:.0625rem solid var(--clps-br-col);padding:calc(1.5 * var(--u-p));border-radius:var(--u-br-r)}label.collapse:hover,label.collapse:focus{background:var(--clps-lbl-h-b-col)}label.collapse+pre{box-sizing:border-box;height:0;max-height:1px;overflow:auto;margin:0;border:0;padding:0;transition:max-height 0.3s}label.collapse.toggled{background:var(--clps-sel-lbl-b-col);border-bottom-color:var(--clps-sel-lbl-br-col);border-bottom-left-radius:0;border-bottom-right-radius:0}label.collapse.toggled+pre{border-top-left-radius:0;border-top-right-radius:0;position:relative;width:100%;height:auto;border:.0625rem solid var(--clps-br-col);border-top:0;padding:calc(2 * var(--u-p));max-height:400px}button.primary.clipboard-copy{width:100%;margin-left:0}button.primary.clipboard-copy>img{vertical-align:bottom}code[class*="language-"],pre[class*="language-"]{color:#222;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.8;-moz-tab-size:2;-o-tab-size:2;tab-size:2;-webkit-hypens:none;-moz-hyphens:none;-ms-hyphens:none;hyphens:none}pre[class*="language-"]{padding:calc(2 * var(--u-p));overflow:auto;margin:var(--u-m) 0}pre[class*="language-"]::-moz-selection,pre[class*="language-"] ::-moz-selection,code[class*="language-"]::-moz-selection,code[class*="language-"] ::-moz-selection{background:#b3d4fc}pre[class*="language-"]::selection,pre[class*="language-"] ::selection,code[class*="language-"]::selection,code[class*="language-"] ::selection{background:#b3d4fc}:not(pre)>code[class*="language-"]{padding:.1em;border-radius:.3em;white-space:normal}.token.comment,.token.prolog,.token.doctype,.token.cdata{color:#7a8490}.token.punctuation{color:#666}.namespace{opacity:.7}.token.property,.token.tag,.token.boolean,.token.constant,.token.symbol,.token.deleted,.token.function{color:#005cc5}.token.number,.token.class-name{color:#832ed2}.token.selector,.token.attr-name,.token.string,.token.char,.token.builtin,.token.inserted{color:#067e36}.token.operator,.token.entity,.token.url,.language-css .token.string,.style .token.string,.token.atrule,.token.attr-value,.token.keyword{color:#d73a49}.token.regex{color:#097cab}.token.important,.token.variable{color:#e90}.token.important,.token.bold{font-weight:bold}.token.italic{font-style:italic}.token.entity{cursor:help}button.scroll-to-top{border-radius:100%;font-size:1.5rem;line-height:1;box-sizing:border-box;width:2.75rem;height:2.75rem;position:fixed;bottom:1rem;right:2rem;background:var(--b-col);box-shadow:0 0.25rem 0.25rem 0 rgba(0,0,0,0.125),0 0.125rem 0.125rem -0.125rem rgba(0,0,0,0.25)}button.scroll-to-top:hover,button.scroll-to-top:focus{background:var(--b-col2)}.card#disclaimer{position:fixed;bottom:0;z-index:1100;max-width:100vw;width:100vw;left:0;text-align:center;font-size:1.5rem;margin:0}@media screen and (min-width: 768px){.card#disclaimer{width:60vw;left:20vw;bottom:1rem}}@media screen and (min-width: 1280px){.card#disclaimer{width:40vw;left:30vw;bottom:1.5rem}}button#disclaimer-close{position:absolute;top:-0.5rem;right:-0.5rem;font-size:0.85rem;background:0}#splash{height:auto;padding-bottom:1.5rem;background:linear-gradient(135deg, #ffae27 0%, #de496d 100%)}#splash #logo{margin-top:0;margin-left:-0.5rem;padding-top:2rem;text-align:center;font-size:2.25rem;line-height:2}#splash #logo img{vertical-align:top;height:4.5rem}#splash #tagline{text-align:center;padding:0.5rem 25%}#splash #doc-link{text-align:center;margin-left:-0.5rem}#splash #doc-link>a{background:transparent;border:0.0625rem solid rgba(17,17,17,0.95);transition:all 0.3s}#splash #doc-link>a:hover,#splash #doc-link>a:focus{background:rgba(17,17,17,0.95);color:#e86957}@media screen and (max-width: 767px){#splash #logo{font-size:1.75rem}#splash #logo img{height:3.5rem}#splash #tagline{padding:0.25rem 17.5%;font-size:0.875rem}#splash #doc-link{font-size:0.875rem}}@media screen and (max-width: 383px){#splash #logo{font-size:1.5rem}#splash #logo img{height:3rem}#splash #tagline{padding:0.125rem 5%}}@media screen and (max-width: 479px){#splash #tagline #tagline-lg{display:none}}@media screen and (min-width: 768px){.col-md-offset-1{margin-left:8.33333%}}@media screen and (min-width: 1280px){.col-lg-offset-2{margin-left:16.66667%}}h2.index-section{border-left:0.3125rem solid #de4a6d;padding-left:0.625rem;margin-top:2rem}#license-icon{text-align:center}@media screen and (min-width: 768px){#license-icon{position:relative;top:calc(50% - 40px)}}#license-icon>svg{border:0.03125rem solid #444;border-radius:100%;padding:0.5rem;fill:#444}#license{vertical-align:middle}.no-padding{padding:0}#in-numbers{background:#111;padding-top:0.75rem;padding-bottom:0.75rem;color:#fff}#in-numbers svg{fill:#fff}@media screen and (min-width: 768px){#in-numbers svg{position:relative;top:20px;left:-34px;width:32px;height:32px}}#in-numbers p{overflow-wrap:break-word;margin-top:0;font-size:0.625rem;margin-bottom:0}@media screen and (min-width: 768px){#in-numbers p{position:relative;top:-24px;left:22px;font-size:0.75rem}}#snippet-count,#contrib-count,#commit-count,#star-count{font-size:1rem}@media screen and (min-width: 768px){#snippet-count,#contrib-count,#commit-count,#star-count{font-size:1.25rem}}ul#links{list-style:none;padding-left:0}ul#links li+li{padding-top:0.625rem}.pick:not(.selected){display:none}.card.pick{transition:all 0.6s;left:0}.card.pick+.card.pick{margin-top:0.5rem}.pick.selected{overflow:visible}.pick.selected button.next{position:absolute;top:50%;right:-1rem}.pick.selected button.next>svg{margin-right:-0.0625rem}#pick-slider{position:relative}button.previous{left:-1%}button.previous>svg{margin-left:-0.125rem}button.next{right:-1%}button.next>svg{margin-left:0.0625rem}button.previous,button.next{position:absolute;top:50%;border-radius:100%;background:#f8f8f8;border:0.03125rem solid #ddd;width:1.5rem;height:1.5rem;padding:0;margin:0;transition:all 0.3s;z-index:2000}button.previous>svg,button.next>svg{fill:#888;transition:all 0.3s}button.previous:hover,button.previous:focus,button.next:hover,button.next:focus{border-color:#aaa}button.previous:hover>svg,button.previous:focus>svg,button.next:hover>svg,button.next:focus>svg{fill:#444}.card.contributor{height:calc(100% - 1rem);justify-content:left}.card.contributor>.section.media{height:auto}.card.contributor>.section.button{font-size:0.75rem;font-weight:700;text-align:center;transition:color 0.3s}.card.contributor>.section.button:hover,.card.contributor>.section.button:focus{color:var(--a-l-col);background:#f8f8f8}.card.fluid.contribution-guideline{overflow:visible;margin-top:3rem;padding-bottom:0.25rem}.card.fluid.contribution-guideline h3{padding-top:0.5rem;text-align:center}.contribution-guideline+.contribution-guideline:before,.contribution-guideline+.contribution-guideline:after{content:"";position:relative;top:-2.75rem;width:0.375rem;height:0.375rem;background:#ddd;border:0.03125rem solid #d0d0d0;border-radius:100%;left:calc(50% - 0.1875rem);box-shadow:inset -0.03125rem -0.03125rem 0.03125rem rgba(0,0,0,0.05)}.contribution-guideline+.contribution-guideline:after{position:absolute;top:-1.875rem}.contribution-number{position:absolute;top:-1.125rem;left:calc(50% - 1.125rem);font-size:1.5rem;background:linear-gradient(135deg, #ffae27 0%, #de496d 100%);border:0.03125 solid #ddd;width:2.25rem;text-align:center;height:2.25rem;border-radius:100%;font-weight:700;color:#fff}body{overflow-x:hidden}label.button.drawer-toggle{background:transparent;color:#111}label.button.drawer-toggle:hover,label.button.drawer-toggle:focus{background:transparent}
diff --git a/docs/mini/flavor.scss b/docs/mini/flavor.scss
index 3ce1226bb..6e3afe580 100644
--- a/docs/mini/flavor.scss
+++ b/docs/mini/flavor.scss
@@ -774,6 +774,10 @@ body {
   overflow-x: hidden;
 }
 
-header {
-
+label.button.drawer-toggle {
+  background: transparent;
+  color: #111;
+  &:hover, &:focus {
+    background: transparent;
+  }
 }
diff --git a/docs/node.html b/docs/node.html
index 7530a7f47..02c227a18 100644
--- a/docs/node.html
+++ b/docs/node.html
@@ -1,4 +1,4 @@
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+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Node - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
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diff --git a/docs/object.html b/docs/object.html
index dc0f43806..006298a4f 100644
--- a/docs/object.html
+++ b/docs/object.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Object - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Object - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
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diff --git a/docs/string.html b/docs/string.html
index eddbe681f..4217f04a3 100644
--- a/docs/string.html
+++ b/docs/string.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>String - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>String - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
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diff --git a/docs/type.html b/docs/type.html
index 800975862..e70353aa6 100644
--- a/docs/type.html
+++ b/docs/type.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Type - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Type - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/docs/utility.html b/docs/utility.html
index f1a063400..7a7d9e905 100644
--- a/docs/utility.html
+++ b/docs/utility.html
@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Utility - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><script>const search = (node) => {
+<!DOCTYPE html><html lang="en"><head><script async src="https://www.googletagmanager.com/gtag/js?id=UA-117141635-1"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","UA-117141635-1")</script><link rel="stylesheet" href="./mini.css"><title>Utility - 30 seconds of code</title><meta charset="utf-8"><meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."><meta name="keywords" content="javascript, snippets, code, programming"><meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#111"><meta property="og:title" content="30 seconds of code"><meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less."/><meta property="og:type" content="website"/><meta property="og:image" content="favicon.png"><link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
         let matchingTags = [];
         Array.from(node.parentElement.parentElement.getElementsByTagName('a')).forEach(x => {
           let data = [x.textContent.toLowerCase(), ...x.getAttribute('tags').split(',')].map(v => !!(v.indexOf(node.value.toLowerCase()) + 1));
diff --git a/static-parts/beginner-page-start.html b/static-parts/beginner-page-start.html
index a4edfc5c6..f89861f7e 100644
--- a/static-parts/beginner-page-start.html
+++ b/static-parts/beginner-page-start.html
@@ -14,12 +14,13 @@
     <meta charset="utf-8">
     <meta name="description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less.">
     <meta name="keywords" content="javascript, snippets, code, programming">
-    <meta name="author" content="Stefan Feješ (ns.fejes.stefan@gmail.com)">
+    <meta name="author" content="Stefan Feješ (stefanfejes.com)">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#111">
     <meta property="og:title" content="30 seconds of code">
     <meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less." />
     <meta property="og:type" content="website" /><meta property="og:image" content="favicon.png">
-    <link rel="icon" type="image/png" href="favicon.png">
+    <link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json">
     <script>
       function scrollToTop(){
         const c = document.querySelector('html').scrollTop;
diff --git a/static-parts/index.html b/static-parts/index.html
index 8237e0034..cdafb76fe 100644
--- a/static-parts/index.html
+++ b/static-parts/index.html
@@ -16,10 +16,11 @@
     <meta name="keywords" content="javascript, snippets, code, programming">
     <meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#111">
     <meta property="og:title" content="30 seconds of code">
     <meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less." />
     <meta property="og:type" content="website" /><meta property="og:image" content="favicon.png">
-    <link rel="icon" type="image/png" href="favicon.png">
+    <link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json">
   </head>
   <body>
     <a href="https://github.com/Chalarangelo/30-seconds-of-code" class="github-corner" aria-label="View source on Github"><svg width="56" height="56" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: fixed; top: 0; border: 0; right: 0; z-index: 1000" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
@@ -73,8 +74,8 @@
       <h2 class="index-section">Today's picks</h2>
       <p>Our sophisticated robot helpers pick new snippets from our collection daily, so that you can discover new snippets to enhance your projects:</p>
       <div id="pick-slider">
-        <button class="next"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-right" aria-hidden="true"><path fill-rule="evenodd" d="M7.5 8l-5 5L1 11.5 4.75 8 1 4.5 2.5 3l5 5z"/></svg></button>
-      <button class="previous"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-left" aria-hidden="true"><path fill-rule="evenodd" d="M6 3l1.5 1.5L3.75 8l3.75 3.5L6 13 1 8l5-5z"/></svg></button>
+        <button class="next" aria-label="next"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-right" aria-hidden="true"><path fill-rule="evenodd" d="M7.5 8l-5 5L1 11.5 4.75 8 1 4.5 2.5 3l5 5z"/></svg></button>
+      <button class="previous" aria-label="previous"><svg version="1.1" width="8" height="16" viewBox="0 0 8 16" class="octicon octicon-chevron-left" aria-hidden="true"><path fill-rule="evenodd" d="M6 3l1.5 1.5L3.75 8l3.75 3.5L6 13 1 8l5-5z"/></svg></button>
       $daily-picks
       <br/>
     </div>
@@ -108,36 +109,36 @@
       <h2 class="index-section">Top contributors</h2>
       <div class="row">
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/Chalarangelo.png"/>
+          <img class="section media" src="https://github.com/Chalarangelo.png"/ alt="chalarangelo">
           <a href="https://github.com/Chalarangelo" class="section button">Angelos Chalaris</a>
           </div>
         </div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/fejes713.png"/>
+          <img class="section media" src="https://github.com/fejes713.png"/ alt="fejes713">
           <a href="https://github.com/fejes713" class="section button">Stefan Feješ</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/flxwu.png"/>
+          <img class="section media" src="https://github.com/flxwu.png"/ alt="flxwu">
           <a href="https://github.com/flxwu" class="section button">Felix Wu</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/atomiks.png"/>
+          <img class="section media" src="https://github.com/atomiks.png"/ alt="atomiks">
           <a href="https://github.com/atomiks" class="section button">atomiks</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/kingdavidmartins.png"/>
+          <img class="section media" src="https://github.com/kingdavidmartins.png"/ alt="kingdavidmartins">
           <a href="https://github.com/kingdavidmartins" class="section button">King David Martins</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/kriadmin.png"/>
+          <img class="section media" src="https://github.com/kriadmin.png"/ alt="kriadmin">
           <a href="https://github.com/kriadmin" class="section button">Rohit Tanwar</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/iamsoorena.png"/>
+          <img class="section media" src="https://github.com/iamsoorena.png"/ alt="iamsoorena">
           <a href="https://github.com/iamsoorena" class="section button">Soorena Soleimani</a>
           </div></div>
         <div class="col-sm-6 col-md-3 col-lg no-padding"><div class="card fluid contributor">
-          <img class="section media" src="https://github.com/skatcat31.png"/>
+          <img class="section media" src="https://github.com/skatcat31.png"/ alt="skatcat31">
           <a href="https://github.com/skatcat31" class="section button">Robert Mennell</a>
           </div></div>
     </div>
diff --git a/static-parts/page-start.html b/static-parts/page-start.html
index f4a4b92fd..031698198 100644
--- a/static-parts/page-start.html
+++ b/static-parts/page-start.html
@@ -16,10 +16,11 @@
     <meta name="keywords" content="javascript, snippets, code, programming">
     <meta name="author" content="Angelos Chalaris (chalarangelo@gmail.com)">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="theme-color" content="#111">
     <meta property="og:title" content="30 seconds of code">
     <meta property="og:description" content="Curated collection of useful Javascript snippets that you can understand in 30 seconds or less." />
     <meta property="og:type" content="website" /><meta property="og:image" content="favicon.png">
-    <link rel="icon" type="image/png" href="favicon.png">
+    <link rel="icon" type="image/png" href="favicon.png"><link rel="manifest" href="manifest.json">
     <script>
       const search = (node) => {
         let matchingTags = [];
