What is the function of Array.reverse () in javascript

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Description

1. The Array.reverse () method reverses the order of the elements in the array and returns the array in reverse order.

2. Instead of creating a new array through the rearranged elements, rearrange it in the original array. This method changes the original array.

Example

Array.prototype.myReverse=function () {if (this instanceof Array) {/ / Array var len=this.length,i=len-1; var res= []; / define an array for (iBizi > = 0Bing iMurt -) {res.push (This [I]);} this.length=0;// empties the original array Array.prototype.splice.apply (this, [0mem0reres]) / / insert the new result into the original array, where the apply method is very suitable for} else {/ / processing class arrays var keys= [], values= []; var len=this.length; delete this ['length']; for (var k in this) {keys.push (k); values.push (This [k]);} for (var iMagne0)