removeMessageHandler()

Unmounts the message-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 handling function.

1componentWillUnmount() {
2  LCC.removeMessageHandler(this.onMessage);
3}

Arguments

Name	Type	Description
`handler: (userMsg: any) => void`	function	The function that handles messages sent from the Aura component.

Response

None.