class AppContextmethod

AppContext​.setErrorHandler()

Sets a global unhandled error handler.

static setErrorHandler(f: (err: unknown) => void): void;

Notes

• This method replaces the current handler, if any, and is not cleared by AppContext.clear().
• The default error handler logs all errors using LogWriter.error() (i.e. app.log.error(...)). Consider using a log sink instead of changing this behavior — refer to LogWriter.addHandler.
• In a test handler context, the global error handler may be overridden to re-throw errors during tests.

Parameters

• f — A handler function, which should accept a single error argument (with unknown type)

Related

• class AppContext
  A singleton class that represents the global application state.