---
title: "Discussion on \"Interesting  internals of array in javascript\" | Hashnode"
description: "Discussion on \"Interesting  internals of array in javascript\". https://www.youtube.com/watch?v=ZRS485LxX0s\n \nArrays are a fundamental data structure in JavaScript. Behind the scenes, V8 - Google's JavaScript engine - optimizes arrays in two main ways:\n\nContiguous arrays\n\nHoley arrays\n\n\nContiguous Arrays\nFor arra..."
url: "https://hashnode.com/posts/interesting-internals-of-array-in-javascript/652a4d51cfad084c4e60c13d"
---

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# [Interesting internals of array in javascript](https://gyandeeparyan.hashnode.dev/interesting-internals-of-array-in-javascript?utm_source=hashnode&utm_medium=feed)

https://www.youtube.com/watch?v=ZRS485LxX0s Arrays are a fundamental data structure in JavaScript. Behind the scenes, V8 - Google's JavaScript engine - optimizes arrays in two main ways: Contiguous arrays Holey arrays Contiguous Arrays For arra...

Oct 14, 2023 · 2 min read · gyandeeparyan.hashnode.dev  
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-   [#javascript](https://hashnode.com/tag/javascript)
-   [#array](https://hashnode.com/tag/array)
-   [#v8-engine](https://hashnode.com/tag/v8-engine)
-   [#jsengine](https://hashnode.com/tag/jsengine)
-   [#web-development](https://hashnode.com/tag/web-development)

## Written by

[Gyandeep Aryan](https://hashnode.com/@gyandeeparyan)

@gyandeeparyan · Indiia

  
[View profile](https://hashnode.com/@gyandeeparyan)

Frontend Developer

संकल्प से सृष्टि useAbout((skills) => skills?.javascript?.reactjs?.nextjs);

## Responses 1

Markdown supported · ⌘↵ to post

[Robin Khilery](https://hashnode.com/@robinkhilery)

[Oct 14, 2023](https://hashnode.com/posts/interesting-internals-of-array-in-javascript/652a4d51cfad084c4e60c13d/comment/652a8d53900df10a392602b6)

This was something I was unaware about . Thanks for sharing