Does it mutate 😱
Array.prototype.reverse
Mutates
Description
The reverse() method reverses an array in place. The first array element becomes the last, and the last array element becomes the first.
Array.prototype.reverse ( )https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse
Example
var array1 = ['one', 'two', 'three'];
console.log('array1: ', array1);
// expected output: Array ['one', 'two', 'three']
var reversed = array1.reverse();
console.log('reversed: ', reversed);
// expected output: Array ['three', 'two', 'one']
/* Careful: reverse is destructive. It also changes
the original array */
console.log('array1: ', array1);
// expected output: Array ['three', 'two', 'one']