How To Stop Setinterval Javascript?

How To Stop Setinterval Javascript? If you are looking for a way to end an interval, the clearInterval() function is what you need.

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Introduction: what is setInterval and how can it be used in JavaScript?

In JavaScript, setInterval() is a function that can be used to repeat a task every given time interval. The syntax for setInterval is as follows:

setInterval(function, milliseconds);

The setInterval() function takes two parameters: the function to execute and the interval in milliseconds. The function passed as the first argument is executed every time the interval expires.

For example, the following code will print “Hello, world!” every 1000 milliseconds (1 second):

setInterval(function() {
console.log(“Hello, world!”);
}, 1000);

Why might you want to stop setInterval?

There are a number of reasons you might want to stop setInterval. Maybe your user navigated to a different page and you no longer need that data. Maybe you have a condition where it doesn’t make sense to keep running setInterval (like when an end date is reached). Whatever the reason, it’s not too hard to stop setInterval.

The simplest way to stop setInterval is by using the clearInterval() method. You just pass in the intervalID that was returned when you created the interval.

For example, if your interval looked like this:

var intervalID = setInterval(function() {
// do something every 5 seconds
}, 5000);

You would stop it with this:


How to stop setInterval using JavaScript?

If you have ever used JavaScript’s setInterval function, you may have noticed that there is no direct way to stop the interval. The only way to stop the interval is to use the clearInterval function.

The clearInterval function takes a single parameter, which is the interval ID that was returned by the setInterval function. The ID is simply a number that represents the interval. You can store this ID in a variable, and then pass that variable to clearInterval when you want to stop the interval.

For example, if you wanted to start an interval that ran every second, you could do this:

var myInterval = setInterval(function(){
}, 1000); // runs every second

To stop the interval, you would pass the ID of the interval to clearInterval:


Other ways to stop setInterval?

If you call clearInterval(myVar), where myVar is the variable set by setInterval, it will stop the execution of the function specified in setInterval.

Alternatively, if you are using jQuery, you can use the jQuery.clearInterval method:

What to do after stopping setInterval?

If you want to do something after stopping setInterval, you can pass a callback function to clearInterval. This callback will be executed after the interval is cleared:

var intervalId = setInterval(function(){
// do something
}, 1000);

clearInterval(intervalId, function(){
// do something after clearing interval

Troubleshooting: Why isn’t my setInterval stopping?

If you’re having trouble getting your setInterval to stop, there are a few things you can check.

First, make sure that you’re using the correct syntax. The basic syntax for setInterval is:

setInterval(function, milliseconds);

If you’ve used this syntax and your setInterval is still not stopping, there are a few other things to check.

One common issue is that people forget to save the return value of setInterval in a variable. This means that they can’t later use that variable to stop the setInterval. Make sure that you’re saving the return value of setInterval in a variable so that you can use it later to stop the interval.

Another issue is that people try to stop their setIntervals too early. Remember that setIntervals will continue running even if the page is closed or if the user navigates away from the page. If you want to stop your setIntervalfunction from running, you need to do so in a way that will work even if the page is closed or if the user navigates away from the page. One way to do this is to use clearInterval() in conjunction with an onbeforeunload event handler:

window.onbeforeunload = function() {


There are two ways to stop setInterval in JavaScript: By using the clearInterval() function, or by setting the interval to zero.

If you’re using setInterval for something that doesn’t need to run constantly, like a slideshow, it’s best to use clearInterval. This will make sure that your interval doesn’t continue running when it’s not supposed to.

If you’re using setInterval for something that does need to run constantly, like a countdown timer, you can set the interval to zero. This will effectively stop the timer from running.


There are many ways to stop setInterval in JavaScript. You can cancel it using the clearInterval() method, which takes the interval ID as an argument, or you can use the stop() method on the interval itself. You can also set a Boolean flag variable to false to indicate that the interval should be stopped. Finally, you can use the native browser window.clearInterval() method if your code is running in a browser environment.

Further Reading

If you want to learn more about how to stop setinterval in Javascript, check out these great resources:


About the Author

My name is George and I am a web developer. I have been working in the industry for over 10 years and have a passion for all things web. I am always keen to learn new technologies and share my knowledge with others.

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