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JS throw Statement
Interrupt code execution with custom exceptions.
exception_handler.js1 / 4
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"Errors are just data screaming for help."
Tutor: The 'throw' statement allows you to create custom errors. When it executes, the current function stops and control is passed to the first catch block.
JS Throw Mastery
Unlock nodes by learning how to handle exceptions.
Concept: The Throw Keyword
Use throw to stop a function and signal that something went wrong.
System Check
What happens to the code after a 'throw' executes?
Technical Summary
The throw statement specifies the value to be thrown as an exception. In JavaScript, you can throw literally any expression.
throw "Too big";
throw 404;
throw new Error("Missing data");
throw 404;
throw new Error("Missing data");
Always pair throw with try...catch to ensure your application doesn't crash in production.