How to make empty an array using AngularJS ?

Given an array & the task is to make empty an array or delete all the elements from the array in AngularJS. In order to do this, there are 2 ways i.e., either use the [] notation to reinitialize the array which eventually removes all the elements from the array, or set the length of the array to 0 by using length property, which also empty the array.

We will explore both the approaches & understand them through the illustrations.

Approach: In this case. arr =[] will create a new array & assign a reference to it to a variable, while any other reference will remain unaffected that still points to the original array. 

Example 1: This example illustrates empty an array using the [] notation in AngularJS.

Output:

Approach: In this case, arr.length = 0 manipulates the array itself, i.e., basically deleting everything from the array & while accessing the array with the help of different variables, then we will get the modified array.

Example 2: This example illustrates setting the array length to 0 using length property, which specifies an empty array.

Output: