How to use splice() Method In Javascript
The JavaScript Array splice() Method is an inbuilt method in JavaScript that is used to modify the contents of an array by removing the existing elements and/or by adding new elements.
Example: In below example we are using splice method to merge two arrays.
const array1 = ['US', 'London', 'Europe'];
const array2 = ['Japan', 'Spain', 'Australia'];
array1.splice(array1.length, 0, ...array2);
console.log(array1);
Output
[ 'US', 'London', 'Europe', 'Japan', 'Spain', 'Australia' ]
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
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