Try...Cach - Error Handling in JavaScript
The try...catch statement in JavaScript is used for handling errors or exceptions that occur during code execution. It allows you to "try" running a block of code and "catch" any errors that occur, providing a mechanism to gracefully handle them. Here's the syntax:
Components
tryBlock: Contains the code that might throw an error.catchBlock: Contains the code to handle the error. Theerrorparameter provides details about the error.finallyBlock (Optional): Contains code that will execute after thetryandcatchblocks, regardless of whether an error occurred.
Key Points
- Only runtime errors (e.g., syntax is valid but execution fails) are caught.
- The
finallyblock is often used for cleanup tasks, like closing connections. - You can rethrow errors in the
catchblock if needed: