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How to Clone Arrays in JavaScript
In this short tip post, we will learn how to clone the existing array in JavaScript.
Objective
Create a copy of the array using JavaScript function.
Approach
Generally, people do the iteration over the existing array and copy each element to new array to create a clone.
We can use slice() function to create the clone of an array.
Code
Here is the code.
var arr = [ 10, 20, 30, 4, 5, 6, 112, 333, 4, 2, 5, 66 ]
var arr2 = arr.slice(0);
console.log('Actual array ', arr);
console.log('Cloned array', arr2);
Check out the codepen for the live demo.
See the Pen
clone array by Shahid Shaikh (@codeforgeek)
on CodePen.
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