JavaScript shift() and pop() methods are used to remove an element from an array. But there is a little difference between them. The shift() method removes the first element and whereas the pop() method removes the last element from an array.
Javascript Array shift() method: The JavaScript Array shift() Method removes the first element of the array thus reducing the size of the original array by 1.
Syntax:
arr.shift()
Example: Below is an example of the array shift() method.
Javascript
<script> function func() { // Original array var array = ["GFG", "Geeks", "for", "Geeks"]; // Checking for condition in array var value = array.shift(); console.log(value); console.log(array); } func(); </script> |
Output:
GFG Geeks, for, Geeks
Javascript Array pop() method: The JavaScript Array pop() Method is used to remove the last element of the array and also returns the removed element. This function decreases the length of the array.
Syntax:
arr.pop()
Example: Below is the example of the array pop() method.
Javascript
<script> function func() { var arr = ['GFG', 'gfg', 'g4g', 'neveropen']; // Popping the last element from the array console.log(arr.pop()); } func(); </script> |
Output:
neveropen
Difference Table:
| Javascript Array shift() method | Javascript Array pop() method |
|---|---|
| This method removes the first element from the array. | This method removes the last element from the array. |
| This method shifts the indexes of the elements by -1. | This method removes the last index of the array. |