removeErrorHandler()

Unmounts the error handling function.

When using React, it’s necessary to unmount functions to remove them from the DOM and perform necessary cleanup.

Sample

Used within a JavaScript app uploaded as a static resource and referenced by lightning:container, this example unmounts a message error handling function. In a React app, functions must be mounted to be part of the document-object model and rendered in the output.

1componentWillUnmount() {
2  LCC.removeErrorHandler(this.onMessageError);
3}

Arguments

Name	Type	Description
`handler: (errorMsg: string) => void)`	function	The function that handles error messages encountered in the messaging framework.

Response

None.