How to Clear an Array in JavaScript

ByHarish Posted on

There are different ways to empty an array in javascript, we have mentioned 4 ways to clear an array using javascript.

For example we have javascript array variable:

let arr = [a,b,c];

Let’s check out different ways to empty an array.

1) Setting array length to zero:

In this method, set array variable lenght to zero.

arr.length = 0;

2) Assign it to new empty array:

This is the quick way to cleat an array in javascript.

arr = [];

3) Using pop() method:

using this pop() method you can remove each array element via using while loop.

while(arr.length > 0)
{
arr.pop();
}

This is quite slowest process to empty an array.

4) Use splice() method:

In this way to clear an array, the splice() method will removed all elements and returned the empty array.

arr.splice(0,arr.length);

Similar Posts