A case study of push function usage in JavaScript

This example describes the use of push functions in JavaScript. Share to everyone for your reference. The specific analysis is as follows:

The push method in JavaScript, adds a new element to an array, and returns the new length value of the array.

Arrayobj.push ([Item1 [item2 [...] [Itemn]]])

Parameters

Arrayobj, required option. An Array object.

Item, Item2,... itemn, Optional. The new element of the Array.

Description

The push method adds these elements in the order in which the new elements appear. If one of the arguments is an array, the array is added as a single element to the arrays. If you want to merge elements from two or more arrays, use the Concat method.

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Array.prototype.push=function () {var len=arguments.length; if (len>0) for (var i=0;i<len;i++) this[this.length]= Arguments[i]; return this.length; var a=[1,2,3,4] A.push (5) alert (a) alert (A.push (6))

I hope this article will help you with your JavaScript programming.

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