Flatten a Nested Array in JavaScript | Beginner-Friendly Loop Explanation

In this video, you’ll learn how to flatten a 2-level nested array using simple JavaScript loops. This is one of the most common coding exercises asked in interviews and great for logic-building for beginners. ⭐ Problem Statement Input: [[1, 2, 5], [3, 4]] Output: [1, 2, 3, 4] You will understand: How to use Array.isArray() How nested loops work How to push values into a result array Why flattening is a common interview question This video is perfect for JavaScript beginners, students, and interview preparation.