JavaScript Archives - Page 2 of 4

How to Add New Elements to Beginning of Array in JavaScript

Often JavaScript developers need to prepend new elements to arrays. Here is how to add new elements to beginning of array in JavaScript.

Often web developers need to remove duplicates from JavaScript array. Here are different ways to get unique values in JavaScript arrays.

Often web developers need to clone JavaScript arrays. Here are different ways to copy array in JavaScript.

Sometimes you may need to empty array in JavaScript. Here are different ways to empty array in JavaScript.

Often web developers need to combine two or more JS objects. Here are different ways to merge two JavaScript objects.

Often web developers need to check if keys exists in JavaScript object. Here are the different ways to do this.

Sometimes you may need to insert items into JavaScript array. Here is how to insert item into JS array at specific index.

Web developers sometimes use strict keyword in their code. Let us learn what does strict do in JavaScript.

Often web developers need to check if JS array contains specific value. Here are different ways to check if array includes value in JavaScript.

Sometimes you may need to move element into other element in jQuery. Here are the different ways to do it.