ToolJet/docs/versioned_docs/version-1.x.x/how-to/intentionally-fail-js-query.md

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. :::