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30secondsofcode
2019-03-01 17:48:12 +00:00
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@ -1,6 +1,6 @@
<!DOCTYPE html><html lang="en"><head><link rel="stylesheet" href="./style.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="https://30secondsofcode.org/logos/logo_512.png"><link rel="icon" type="image/png" href="./logos/logo_128.png"><link rel="manifest" href="manifest.json"><script>const search = (node) => {
if(node.value.toLowerCase().trim() === ''){
document.querySelector('nav').querySelectorAll('li > a').forEach(x => x.style.display = '');
document.querySelector('nav').querySelectorAll('li').forEach(x => x.style.display = '');
document.querySelector('nav').querySelectorAll('h4:not(.static-link)').forEach(x => x.classList = 'collapse');
return;
}
@ -139,11 +139,11 @@ o<span class="token punctuation">[</span><span class="token number">1</span><spa
<span class="token operator">?</span> obj<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span>val <span class="token operator">=></span> <span class="token function">deepMapKeys</span><span class="token punctuation">(</span>val<span class="token punctuation">,</span> f<span class="token punctuation">))
:</span> <span class="token keyword">typeof</span> obj <span class="token operator">===</span> <span class="token string">'object'</span>
<span class="token operator">?</span> Object<span class="token punctuation">.</span><span class="token function">keys</span><span class="token punctuation">(</span>obj<span class="token punctuation">).</span><span class="token function">reduce</span><span class="token punctuation">((</span>acc<span class="token punctuation">,</span> current<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
<span class="token keyword">const</span> val <span class="token operator">=</span> obj<span class="token punctuation">[</span>current<span class="token punctuation">];</span>
acc<span class="token punctuation">[</span><span class="token function">f</span><span class="token punctuation">(</span>current<span class="token punctuation">)]</span> <span class="token operator">=</span>
<span class="token keyword">const</span> val <span class="token operator">=</span> obj<span class="token punctuation">[</span>current<span class="token punctuation">];</span>
acc<span class="token punctuation">[</span><span class="token function">f</span><span class="token punctuation">(</span>current<span class="token punctuation">)]</span> <span class="token operator">=</span>
val <span class="token operator">!==</span> <span class="token keyword">null</span> <span class="token operator">&amp;&amp;</span> <span class="token keyword">typeof</span> val <span class="token operator">===</span> <span class="token string">'object'</span> <span class="token operator">?</span> <span class="token function">deepMapKeys</span><span class="token punctuation">(</span>val<span class="token punctuation">,</span> f<span class="token punctuation">) : (</span>acc<span class="token punctuation">[</span><span class="token function">f</span><span class="token punctuation">(</span>current<span class="token punctuation">)]</span> <span class="token operator">=</span> val<span class="token punctuation">);</span>
<span class="token keyword">return</span> acc<span class="token punctuation">;
}, {})
<span class="token keyword">return</span> acc<span class="token punctuation">;
}, {})
:</span> obj<span class="token punctuation">;</span>
</pre><label class="collapse">examples</label><pre class="section card-examples language-js"><span class="token keyword">const</span> obj <span class="token operator">=</span> <span class="token punctuation">{</span>
foo<span class="token punctuation">:</span> <span class="token string">'1'</span><span class="token punctuation">,</span>
@ -178,9 +178,9 @@ o<span class="token punctuation">[</span><span class="token number">1</span><spa
target <span class="token keyword">in</span> obj
<span class="token operator">?</span> obj<span class="token punctuation">[</span>target<span class="token punctuation">]
:</span> Object<span class="token punctuation">.</span><span class="token function">values</span><span class="token punctuation">(</span>obj<span class="token punctuation">).</span><span class="token function">reduce</span><span class="token punctuation">((</span>acc<span class="token punctuation">,</span> val<span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span>acc <span class="token operator">!==</span> undefined<span class="token punctuation">)</span> <span class="token keyword">return</span> acc<span class="token punctuation">;</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token keyword">typeof</span> val <span class="token operator">===</span> <span class="token string">'object'</span><span class="token punctuation">)</span> <span class="token keyword">return</span> <span class="token function">dig</span><span class="token punctuation">(</span>val<span class="token punctuation">,</span> target<span class="token punctuation">);
},</span> undefined<span class="token punctuation">);</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span>acc <span class="token operator">!==</span> undefined<span class="token punctuation">)</span> <span class="token keyword">return</span> acc<span class="token punctuation">;</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token keyword">typeof</span> val <span class="token operator">===</span> <span class="token string">'object'</span><span class="token punctuation">)</span> <span class="token keyword">return</span> <span class="token function">dig</span><span class="token punctuation">(</span>val<span class="token punctuation">,</span> target<span class="token punctuation">);
},</span> undefined<span class="token punctuation">);</span>
</pre><label class="collapse">examples</label><pre class="section card-examples language-js"><span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">{</span>
level1<span class="token punctuation">: {</span>
level2<span class="token punctuation">: {</span>