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    Array push method Redirect 1

    Summary

    The push() method adds one or more elements to the end of an array and returns the new length of the array.

    Syntax

    arr.push(element1, ..., elementN)

    Parameters

    element1, ..., elementN
    The elements to add to the end of the array.

    Returns

    The new length property of the object upon which the method was called.

    Description

    The push method appends values to an array.

    push is intentionally generic. This method can be called or applied to objects resembling arrays. The push method relies on a length property to determine where to start inserting the given values. If the length property cannot be converted into a number, the index used is 0. This includes the possibility of length being nonexistent, in which case length will also be created.

    The only native, array-like objects are Strings, although they are not suitable in applications of this method, as strings are immutable.

    Examples

    Example: Adding elements to an array

    The following code creates the sports array containing two elements, then appends two elements to it. The total variable contains the new length of the array.

    var sports = ["soccer", "baseball"];
    var total = sports.push("football", "swimming");
    
    console.log(sports); // ["soccer", "baseball", "football", "swimming"]
    console.log(total);  // 4
    

    Specifications

    Specification Status Comment
    ECMAScript 3rd Edition Standard Initial definition. Implemented in JavaScript 1.2
    ECMAScript Language Specification 5.1th Edition (ECMA-262) Standard  
    ECMAScript Language Specification 6th Edition (ECMA-262) Draft  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 1.0 1.0 (1.7 or earlier) 5.5 (Yes) (Yes)
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    Document Tags and Contributors

    Contributors to this page: Sheppy
    Last updated by: Sheppy,
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