How to merge two arrays in JavaScript and de-duplicate items

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I have two JavaScript arrays:

var array1 = ["Vijendra","Singh"]; 
var array2 = ["Singh", "Shakya"];


I want the output to be:

var array3 = ["Vijendra","Singh","Shakya"];


The output array should have repeated words removed. How do I merge two arrays in JavaScript so that I get only the unique items from each array in the same order they were inserted into the original arrays?

Feb 18, 2022 in Java by Rahul
• 9,670 points
157 views

1 answer to this question.

0 votes

With Underscore.js or Lo-Dash you can use:

console.log(_.union([1, 2, 3], [101, 2, 1, 10], [2, 1]));

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>

answered Feb 18, 2022 by Aditya
• 7,660 points

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