JavaScript array pop | method | Remove last​ element from array

JavaScript Array pop method is used to remove the last element from the JS Array and returns that element. This method will modified the Array length by 1.

Pop() is one of the methods to use to remove and add four methods. Others 3 methods are shift(), push() and unshift().

JavaScript array pop Method

Syntax

A simple syntax of pop() method.

Parameters

No parameter are required.

Return value

A removed element from the array, if the array is empty than return value is undefined.

JavaScript Array pop Example

Let’s see how to remove the last element from the Array javascript example.

In the example creating an array and then removing the last element. In the output, both arrays will show. Here we are using to show array in p tag, you can also use console log to see the output.

Output: below in GIF file.

JavaScript Array pop Example

Let’s print the Javascript array pop index value

A removed item index value will be “array.length – 1“, because this method removes the last element of the array and array indexing is start from 0.

Let’s see how to get the value of the removed element from array:-

complete example:

Output: in GIF, every time removed the item to show. If no element remains in the array will show undefined.

Javascript array pop index value

How to Javascript array pop first

To remove the first element from JS Array, you have to use the shift() method.

Do comment if you have any doubt and suggestion on this tutorial.

Note: The All JavaScript array pop method Examples are tested on Safari browser (Version 12.0.2).
OS: macOS 10.14 Mojave
Code: HTML 5 Version


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