wiki/content/20201111093310-javascript_referenceerror.md

---
date: 2020-11-11
id: 52bd8a6a-0d4c-4860-b015-333e7f1b7e34
title: JavaScript ReferenceError
---

``` javascript
'use strict';
console.log(notValidVar); // ReferenceError: notValidVar is not defined
```
Quartz sync: May 6, 2024, 10:40 PM 2024-05-06 20:40:05 +00:00			`---`
Quartz sync: Oct 30, 2024, 6:34 PM 2024-10-30 17:34:11 +00:00			`date: 2020-11-11`
Quartz sync: May 6, 2024, 10:40 PM 2024-05-06 20:40:05 +00:00			`id: 52bd8a6a-0d4c-4860-b015-333e7f1b7e34`
			`title: JavaScript ReferenceError`
			`---`

			``` javascript
			`'use strict';`
			`console.log(notValidVar); // ReferenceError: notValidVar is not defined`
			```