JavaScript - Array unshift() Method
Advertisements
Description
Javascript array unshift() method adds one or more elements to the beginning of an array and returns the new length of the array.
Syntax
Its syntax is as follows −
array.unshift( element1, ..., elementN );
Parameter Details
element1, ..., elementN − The elements to add to the front of the array.
Return Value
Returns the length of the new array. It returns undefined in IE browser.
Example
Try the following example.
Live Demo<html> <head> <title>JavaScript Array unshift Method</title> </head> <body> <script type = "text/javascript"> var arr = new Array("orange", "mango", "banana", "sugar"); var length = arr.unshift("water"); document.write("Returned array is : " + arr ); document.write("<br /> Length of the array is : " + length ); </script> </body> </html>
Output
Returned array is : water,orange,mango,banana,sugar Length of the array is : 5
javascript_arrays_object.htm
Advertisements