Throwing Your Own Errors
When a function gets a value it can't use, throw new Error with a message that says what was wrong, make your own error class with extends Error for the problems your program knows about, and return a value instead when there's no mistake to report.
Updated
- Category
- JavaScript
- Level
- Journeyman
- Tags
- Custom Error, Error, extends, instanceof (javascript), JavaScript, software-development, throw (javascript)