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Window clearInterval() Method

Window Object Reference Window Object

Example

Display the current time (the setInterval() method will execute the function once every 1 second, just like a digital watch). Use clearInterval() to stop time:

var myVar = setInterval(function(){ myTimer() }, 1000);

function myTimer() {
    var d = new Date();
    var t = d.toLocaleTimeString();
    document.getElementById("demo").innerHTML = t;
}

function myStopFunction() {
    clearInterval(myVar);
}

Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The clearInterval() method clears a timer set with the setInterval() method.

The ID value returned by setInterval() is used as the parameter for the clearInterval() method.

Note: To be able to use the clearInterval() method, you must use a global variable when creating the interval method:

myVar = setInterval("javascript function", milliseconds);

Then you will be able to stop the execution by calling the clearInterval() method.


Browser Support

The numbers in the table specify the first browser version that fully supports the method.

Method
clearInterval() 1.0 4.0 1.0 1.0 4.0


Syntax

clearInterval(id_of_setinterval)

Parameter Values

Parameter Description
id_of_setinterval Required. The ID of the timer returned by the setInterval() method

Technical Details

Return Value: No return value


Examples

More Examples

Example

Toggle between two background colors once every 300 milliseconds, until it is stopped by clearInterval():

var myVar = setInterval(function(){ setColor() }, 300);

function setColor() {
    var x = document.body;
    x.style.backgroundColor = x.style.backgroundColor == "yellow" ? "pink" : "yellow";
}

function stopColor() {
    clearInterval(myVar);
}

Try it yourself »


Related Pages

Window Object: setInterval() Method

Window Object: setTimeout() Method

Window Object: clearTimeout() Method


Window Object Reference Window Object

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