How can I implement global error handling in JavaScript?

How can I implement global error handling in JavaScript?

You can implement global error handling in JavaScript using the window.onerror event handler or by using try...catch blocks.

Can you give me an example of using window.onerror?

Sure! You can set it up like this:

window.onerror = function(message, source, lineno, colno, error) {
    console.error(`Error: ${message} at ${source}:${lineno}:${colno}`);
};

What about handling errors in asynchronous code?

For asynchronous code, you can use try...catch with async/await or handle errors in the .catch() method of a Promise.

Is there a way to log errors to an external service?

Yes, you can send error details to an external logging service using fetch or XMLHttpRequest in the window.onerror handler.