Remove Duplicates from Array in JavaScript | filter() + for Loop Explained (2026)

In this video, you will learn how to remove duplicate values from an array in JavaScript using two different methods — the filter() method and a normal for loop — with a complete step-by-step dry run so you understand exactly what is happening at every stage.

Whether you are a beginner just starting out with JavaScript or a developer brushing up on array methods, this tutorial breaks it down in the simplest way possible.

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⏱️ TIMESTAMPS
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0:00 Introduction
0:16 Problem
0:50 Method 1 - using filter()
2:33 Dry Run
9:03 Method 2 – Normal for loop
14:02 Outro

Видео Remove Duplicates from Array in JavaScript | filter() + for Loop Explained (2026) канала AshishCoding