How do I use setInterval in JavaScript?

How do I use setInterval in JavaScript?

You can use setInterval to execute a function repeatedly at specified intervals. For example: setInterval(myFunction, 1000);

Can you show me a simple example?

Sure! Here's a simple example:

let count = 0;
const intervalId = setInterval(() => {
    count++;
    console.log(count);
    if (count === 5) {
        clearInterval(intervalId);
    }
}, 1000);

This will log the count every second until it reaches 5.

What happens if I forget to clear the interval?

If you forget to clear the interval, the function will continue to execute indefinitely, which can lead to performance issues.