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What is error handling in JavaScript?

Asked on Aug 15, 2025

Answer

Error handling in JavaScript is the process of anticipating, detecting, and resolving errors that occur during code execution to ensure the program runs smoothly. It often involves using "try", "catch", "finally", and "throw" statements.

// Example of error handling in JavaScript
        try {
            // Code that may throw an error
            let result = riskyOperation();
        } catch (error) {
            // Handle the error
            console.error("An error occurred:", error.message);
        } finally {
            // Code that will run regardless of an error
            console.log("Operation complete.");
        }

        function riskyOperation() {
            // Simulate an error
            throw new Error("Something went wrong!");
        }

Additional Comment:

The "try" block contains code that might throw an error.
The "catch" block handles any error that occurs in the "try" block.
The "finally" block executes code after the "try" and "catch" blocks, regardless of whether an error occurred.
You can use the "throw" statement to create custom errors.

✅ Answered with JavaScript best practices.

Ask any question about JavaScript here... and get an instant response.

What is error handling in JavaScript?

Asked on Aug 15, 2025

Answer

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