---
title: "Discussion on \"Array Flatten in JavaScript\" | Hashnode"
description: "Discussion on \"Array Flatten in JavaScript\". What Nested Arrays Are\nFirst, understand the basicA nested array means an array inside another array.\nExample:\nlet arr = [1, 2, [3, 4], [5, 6]];\n\nHere:\n\n1, 2 → normal values\n\n[3,4], [5,6] → nested arr"
url: "https://hashnode.com/posts/array-flatten-in-javascript/69d5eb025da14bc70ed9034d"
---

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# [Array Flatten in JavaScript](https://learnwithdevesh.hashnode.dev/array-flatten-in-javascript?utm_source=hashnode&utm_medium=feed)

What Nested Arrays Are First, understand the basicA nested array means an array inside another array. Example: let arr = \[1, 2, \[3, 4\], \[5, 6\]\]; Here: 1, 2 → normal values \[3,4\], \[5,6\] → nested arr

Apr 8 · 3 min read · learnwithdevesh.hashnode.dev  
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