diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 37b9cc767..15aab603c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -55,7 +55,8 @@ Here's what you can do to help:
   - `i` for indexes.
   - `func` for function arguments.
   - `nums` for arrays of numbers.
-- Use `_` if your function takes no arguments or if an argument inside some function (e.g. `Array.reduce()`) is not used anywhere in your code.
+- Use `()` if your function takes no arguments.
+- Use `_` if an argument inside some function (e.g. `Array.reduce()`) is not used anywhere in your code.
 - Specify default parameters for arguments, if necessary. It is preferred to put default parameters last unless you have pretty good reason not to.
 - If your snippet's function takes variadic arguments, use `..args` (although in certain cases, it might be needed to use a different name).
 - If your snippet function's body is a single statement, omit the `return` keyword and use an expression instead.
diff --git a/snippets/UUID-generator.md b/snippets/UUID-generator.md
index 01d4e27ac..342fce12b 100644
--- a/snippets/UUID-generator.md
+++ b/snippets/UUID-generator.md
@@ -3,7 +3,7 @@
 Use `crypto` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
 
 ```js
-const uuid = _ =>
+const uuid = () =>
   ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
     (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
   );
diff --git a/snippets/bottom-visible.md b/snippets/bottom-visible.md
index b94ac773a..797b0eb00 100644
--- a/snippets/bottom-visible.md
+++ b/snippets/bottom-visible.md
@@ -3,7 +3,7 @@
 Use `scrollY`, `scrollHeight` and `clientHeight` to determine if the bottom of the page is visible.
 
 ```js
-const bottomVisible = _ =>
+const bottomVisible = () =>
   document.documentElement.clientHeight + window.scrollY >= document.documentElement.scrollHeight || document.documentElement.clientHeight;
 // bottomVisible() -> true
 ```
diff --git a/snippets/current-URL.md b/snippets/current-URL.md
index 200cf150b..3a549d219 100644
--- a/snippets/current-URL.md
+++ b/snippets/current-URL.md
@@ -3,6 +3,6 @@
 Use `window.location.href` to get current URL.
 
 ```js
-const currentUrl = _ => window.location.href;
+const currentUrl = () => window.location.href;
 // currentUrl() -> 'https://google.com'
 ```
diff --git a/snippets/scroll-to-top.md b/snippets/scroll-to-top.md
index 6c82190a4..19064a5d5 100644
--- a/snippets/scroll-to-top.md
+++ b/snippets/scroll-to-top.md
@@ -4,7 +4,7 @@ Get distance from top using `document.documentElement.scrollTop` or `document.bo
 Scroll by a fraction of the distance from top. Use `window.requestAnimationFrame()` to animate the scrolling.
 
 ```js
-const scrollToTop = _ => {
+const scrollToTop = () => {
   const c = document.documentElement.scrollTop || document.body.scrollTop;
   if (c > 0) {
     window.requestAnimationFrame(scrollToTop);