Build README

README.md

@@ -57,7 +57,6 @@
 * [Promisify](#promisify)
 * [Random integer in range](#random-integer-in-range)
 * [Random number in range](#random-number-in-range)
-* [Randomize order of array](#randomize-order-of-array)
 * [Redirect to URL](#redirect-to-url)
 * [Reverse a string](#reverse-a-string)
 * [RGB to hexadecimal](#rgb-to-hexadecimal)
@@ -597,15 +596,6 @@ const randomInRange = (min, max) => Math.random() * (max - min) + min;
 // randomInRange(2,10) -> 6.0211363285087005
 ```
 
-### Randomize order of array
-
-Use `Array.sort()` to reorder elements, utilizing `Math.random()` to randomize the sorting.
-
-```js
-const randomizeOrder = arr => arr.sort((a, b) => Math.random() >= 0.5 ? -1 : 1);
-// randomizeOrder([1,2,3]) -> [1,3,2]
-```
-
 ### Redirect to URL
 
 Use `window.location.href` or `window.location.replace()` to redirect to `url`.
@@ -667,11 +657,8 @@ const scrollToTop = _ => {
 Use `Array.sort()` to reorder elements, using `Math.random()` in the comparator.
 
 ```js
-const shuffle = arr => {
-  let r = arr.map(Math.random);
-  return arr.sort((a, b) => r[a] - r[b]);
-};
-// shuffle([1,2,3]) -> [2, 1, 3]
+const shuffle = arr => arr.sort(() => Math.random() - 0.5);
+// shuffle([1,2,3]) -> [2,3,1]
 ```
 
 ### Similarity between arrays