---
title: "Discussion on \"Find what JavaScript variables are leaking into the global scope\" | Hashnode"
description: "Discussion on \"Find what JavaScript variables are leaking into the global scope\". Let's build an utility to check what variables have been added or leaked to the global window object at runtime by JavaScript code"
url: "https://hashnode.com/posts/find-what-javascript-variables-are-leaking-into-the-global-scope/6214fdbe3725328660e2f3a9"
---

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# [Find what JavaScript variables are leaking into the global scope](https://mmazzarolo.hashnode.dev/find-what-javascript-variables-are-leaking-into-the-global-scope?utm_source=hashnode&utm_medium=feed)

Let's build an utility to check what variables have been added or leaked to the global window object at runtime by JavaScript code

Feb 22, 2022 · 4 min read · mmazzarolo.hashnode.dev  
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## Written by

[Matteo Mazzarolo](https://hashnode.com/@mmazzarolo)

@mmazzarolo

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

Engineer @invisionapp

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