Can a lightning base component handle an error?
Don’t depend on the internals of a Lightning base component for error handling as its internals can change in future releases. Errors that are recoverable can change into unrecoverable errors and vice versa. If you encounter an unexpected error, you can sometimes get more information by enabling debug mode.
How are errors handled in lightning and apex?
The controller sends a response to the Lightning component. The Lightning component processes the response in a callback function. This can trigger a client-side error (unexpected response). If we omit the network-related errors, this pattern can trigger two types of errors that developers must handle: server-side and client-side errors.
Is it bad practice to return system exception to lightning?
If you process a failing server request as is (see code below), a system exception is returned to the Lightning component. ? Doing so is bad practice as this results in a generic error message: “An internal server error has occurred” or “Sorry to interrupt”.
Where does the error message Go in Lightning aura?
The message in the error is displayed to the user in a dynamically created ui:message component. The body of the ui:message is a ui:outputText component containing the error text.
What does it mean when ltng encounter error in JavaScript?
If ltng:require encounters errors in your script, you see an error in the JavaScript console that includes details about the problem. The JavaScript console could show a message such as the following. This also indicates the problem is in the static resource, myLib.js in this case.
When to use init event handler in ltng?
Don’t use the init event to access scripts loaded by ltng:require. These scripts load asynchronously and are most likely not available when the init event handler is called. Specify a comma-separated list of resources in the scripts attribute to load a set of resources.