What is the difference between setTimeout and setInterval in JavaScript?

Can you explain the difference between setTimeout and setInterval in JavaScript?

Sure! setTimeout is used to execute a function once after a specified delay, while setInterval repeatedly executes a function at specified intervals.

Can you give me an example of how to use both?

Of course! For setTimeout, you might use it like this: setTimeout(() => { console.log('Hello!'); }, 1000); This will log 'Hello!' after 1 second. For setInterval, you could do: setInterval(() => { console.log('Hello every second!'); }, 1000); This will log 'Hello every second!' every second.

What happens if I want to stop the interval?

You can stop an interval using clearInterval(). For example, if you stored the interval in a variable like let intervalId = setInterval(...);, you can stop it with clearInterval(intervalId);.

Are there any performance considerations I should be aware of?

Yes, using setInterval can lead to performance issues if the function takes longer to execute than the interval time. It's often better to use setTimeout recursively for better control.