---
title: "Discussion on \"Error Explained: Cannot read properties of undefined/null (reading '[property name]')\" | Hashnode"
description: "Discussion on \"Error Explained: Cannot read properties of undefined/null (reading '[property name]')\". tl;dr\nThe object that comes before the property in parentheses does not have a value (meaning: it is undefined or null). Check where it was supposed to be assigned a value to determine why not.\nGeneral\n💡 Note: this error is shown for either undefine..."
url: "https://hashnode.com/posts/error-explained-cannot-read-properties-of-undefined-reading-property/640e1dfdd4739b624374e9ed"
---

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Discussion

# [Error Explained: Cannot read properties of undefined/null (reading '\[property name\]')](https://beyond-bootcamp.hashnode.dev/error-explained-cannot-read-properties-of-undefined-reading-property?utm_source=hashnode&utm_medium=feed)

tl;dr The object that comes before the property in parentheses does not have a value (meaning: it is undefined or null). Check where it was supposed to be assigned a value to determine why not. General 💡 Note: this error is shown for either undefine...

Mar 12, 2023 · 5 min read · beyond-bootcamp.hashnode.dev  
Updated Mar 18, 2024  
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-   [#null](https://hashnode.com/tag/null)

## Written by

[Michael J. Kazin](https://hashnode.com/@mkazin)

@mkazin · Boston

  
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