Nodejs

Try...Cach - Error Handling in JavaScript

February 09, 2021

 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:

    <script>

        try{
            console.log("this is first text");
            disturbance;
            console.log("this is second text");

        }catch{
            console.log("You! got error");
        }

    </script>

Components

  1. try Block: Contains the code that might throw an error.
  2. catch Block: Contains the code to handle the error. The error parameter provides details about the error.
  3. finally Block (Optional): Contains code that will execute after the try and catch blocks, regardless of whether an error occurred.

Key Points

  • Only runtime errors (e.g., syntax is valid but execution fails) are caught.
  • The finally block is often used for cleanup tasks, like closing connections.
  • You can rethrow errors in the catch block if needed: