---
title: "Discussion on \"What is Typescript 's exclamation(!) mark operator, or bag and how does it work?\" | Hashnode"
description: "Discussion on \"What is Typescript 's exclamation(!) mark operator, or bag and how does it work?\". Avoid Object is possibly 'null'.ts(2531)"
url: "https://hashnode.com/posts/what-is-tss-exclamation-mark-operator-or-bag-and-how-does-it-work/66c84ae0fdeaf41d3b2149ac"
---

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Discussion

# [What is Typescript 's exclamation(!) mark operator, or bag and how does it work?](https://blog.allaroundjavascript.com/what-is-tss-exclamation-mark-operator-or-bag-and-how-does-it-work?utm_source=hashnode&utm_medium=feed)

Avoid Object is possibly 'null'.ts(2531)

Aug 23, 2024 · 3 min read · blog.allaroundjavascript.com  
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-   [#typescript](https://hashnode.com/tag/typescript)
-   [#null-safety](https://hashnode.com/tag/null-safety)
-   [#undefined](https://hashnode.com/tag/undefined)

## Written by

[Carmine Tambascia](https://hashnode.com/@carmine)

@carmine · Switzerland

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

software developer/ web developer

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