ToolJet/docs/versioned_docs/version-2.7.0/how-to/intentionally-fail-js-query.md at 8d9d86cf2c7f1dfdf90db7bcbbae44a128201dcf

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Shubhendra Singh Chauhan 27ca897171

* [docs] version 2.7.0

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2023-06-21 16:53:48 +05:30

id	title
intentionally-fail-js-query	Intentionally fail a RunJS query

In this how-to guide, we will create a RunJS query that will throw an error.

Create a RunJS query and paste the code below. We will use the constructor ReferenceError since it is used to create a range error instance.
```
throw new ReferenceError('This is a reference error.');
```
Now, add a event handler to show an alert when the query fails. Save the query and Run it.

:::info Most common use-case for intentionally failing a query is debugging. :::