By using push.apply method
In this method, we will use apply() method with array.push() for merging two arrays without creating new arrays.
Example: In below example we are using ‘push.apply’ method to merge two arrays.
const array1 = ["HTML", "CSS", "JAVA"];
const array2 = ["PYTHON", "JAVASCRIPT", ".NET"];
Array.prototype.push.apply(array1, array2);
console.log(array1);
Output
[ 'HTML', 'CSS', 'JAVA', 'PYTHON', 'JAVASCRIPT', '.NET' ]
JavaScript Program to Merge Two Arrays Without Creating a New Array
In this article, we will learn how to merge two arrays without creating a new array. In JavaScript Array is used to store elements of similar data types. If we want to add an element into another array for merging two arrays, we can use the push method. There are many methods for merging two arrays without creating a new array.
Table of Content
- Method 1: Using the push() method
- Method 2: Using splice() Method
- Method 3: By using push.apply method
- Method 4: Using concat with Assignment