What are some examples of using try-catch in JavaScript?

What are some examples of using try-catch in JavaScript?

In JavaScript, try-catch is used to handle exceptions. For example:

try {
    // Code that may throw an error
    let result = riskyFunction();
} catch (error) {
    console.error('Error occurred:', error);
}

Can you give me another example?

Sure! Here's another example:

try {
    let data = JSON.parse(invalidJson);
} catch (error) {
    console.log('Invalid JSON:', error.message);
}

What happens if there's no catch block?

If there's no catch block, the error will propagate up the call stack, potentially crashing the program or causing unhandled exceptions.

Are there any best practices for using try-catch?

Yes, some best practices include:

1. Use try-catch for code that can throw exceptions.
2. Keep the try block small to avoid catching unexpected errors.
3. Always log the error for debugging purposes.