What are some examples of using setTimeout in JavaScript?

Can you give me some examples of using setTimeout in JavaScript?

Sure! The setTimeout function is used to execute a function after a specified delay. For example:

setTimeout(() => {
    console.log('Hello after 2 seconds!');
}, 2000);

What happens if I call setTimeout multiple times?

If you call setTimeout multiple times, each call will create a separate timer. For instance:

setTimeout(() => console.log('First!'), 1000);
setTimeout(() => console.log('Second!'), 2000);

This will log 'First!' after 1 second and 'Second!' after 2 seconds.

Can I cancel a timeout? How?

Yes, you can cancel a timeout using clearTimeout. You need to store the timeout ID returned by setTimeout:

const timeoutId = setTimeout(() => console.log('This will not run'), 3000);
clearTimeout(timeoutId);

This will prevent the function from executing.

Are there any common pitfalls when using setTimeout?

One common pitfall is not understanding that setTimeout is asynchronous. This can lead to unexpected behavior if you're relying on the order of execution. Always be mindful of the timing!