title: Error Handling
All functions in Node-Serialport follow two conventions:
- Argument errors throw a
TypeErrorobject. You'll see these when functions are called with invalid arguments.
- Runtime errors provide
Errorobjects to the function's callback or emit an
error eventif no callback is provided. You'll see these when a runtime error occurs, like trying to open a bad port or setting an unsupported baud rate.
- Promise based functions reject a
TypeErrorfor an argument error, or a standard
Errorfor runtime errors.
You should never have to wrap a Node-Serialport object in a try/catch statement if you call the functions with the correct arguments.