How to Join Arrays in JavaScript - Step by Step Examples

How to Join Arrays in JavaScript ?

To join arrays in JavaScript, you can use the concat method or the spread operator (...).

In this example,

We create two arrays, arr1 and arr2.
We then use the concat method to concatenate arr1 and arr2 into a new array result.
The result array contains elements from both arr1 and arr2.

const arr1 = [1, 2, 3];
const arr2 = [4, 5, 6];
const result = arr1.concat(arr2);
console.log('Joined Array:', result);

Joined Array: [ 1, 2, 3, 4, 5, 6 ]

In this example,

We create two arrays, arr1 and arr2.
We then use the spread operator (...) to spread elements of arr1 and arr2 into a new array result.
The result array contains elements from both arr1 and arr2.

const arr1 = [1, 2, 3];
const arr2 = [4, 5, 6];
const result = [...arr1, ...arr2];
console.log('Joined Array:', result);

Joined Array: [ 1, 2, 3, 4, 5, 6 ]

In this tutorial, we learned How to Join Arrays in JavaScript language with well detailed examples.