Array reverse()

JavaScript Array reverse() Definition

The reverse () method reverses the array. The first element of the array becomes the last element and vice versa.

Syntax:

array.reverse()

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JavaScript Array reverse() Examples

Example 1

        let list = ["a", "b", "c", "d"];
        console.log("Normal Array: " + list);

        let newList = list.reverse();
        console.log("Reverse Array: "+ newList)

Output:

Normal Array: a,b,c,d
Reverse Array: d,c,b,a

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You can define the reverse () function yourself

        function reverseArr(input) {
            var ret = new Array;
            for (var i = input.length - 1; i >= 0; i--) {
                ret.push(input[i]);
            }
            return ret;
        }

Example:

        var x = ["a","b","c","d"]
        var y= reverseArr(a);
        console.log(x)
        console.log(y)

[“a”,”b”,”c”,”d”]
[“d”,”c”,”b”,”a”]

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Browser Support

Chrome	1
Edge	yes
Firefox	1
Internet Explorer	5.5
Opera	yes
Safari	yes
Android webview	yes
Chrome for Android	yes
Edge mobile	yes
Firefox for Android	4
Opera Android	yes