What are the methods to clear all elements in a JavaScript array

Question

With the help of a proper code explanation, can you tell me What the methods are to clear all elements in a JavaScript array?

Answer 1

In JavaScript, there are several methods to clear all elements from an array. Here are some common approaches:

Assigning a New Empty Array:

let arr = [1, 2, 3];

arr = [];

console.log(arr); // Output: []

Setting the length Property to 0:

let arr = [1, 2, 3];

arr.length = 0;

console.log(arr); // Output: []

Using the splice() Method:

let arr = [1, 2, 3];

arr.splice(0, arr.length);

console.log(arr); // Output: []