Optional defaultValue: unknownPrivate Readonly defaultPrivate Readonly keyChecks if the input can be handled by this class. If it cannot handle the input, rejects with an error explaining why.
A promise resolving if the input can be handled, rejecting with an Error if not.
Input that could potentially be handled.
Handles the given input. This may only be called if canHandle did not reject. When unconditionally calling both in sequence, consider handleSafe instead.
A promise resolving when handling is finished.
Input that needs to be handled.
Helper function that first runs canHandle followed by handle. Throws the error of canHandle if the data cannot be handled, or returns the result of handle otherwise.
A promise resolving if the input can be handled, rejecting with an Error if not.
Input data that will be handled if it can be handled.
A simple SettingsExtractor that extracts a single value from the input map. Returns the default value if it was defined in case no value was found in the map.