Window clearInterval() Method
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 |
|---|
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 »
Example
Using setInterval() and clearInterval() to create a dynamic progress bar:
function move() {
var elem = document.getElementById("myBar");
var width = 0;
var id = setInterval(frame, 100);
function frame() {
if (width == 100) {
clearInterval(id);
} else {
width++;
elem.style.width = width + '%';
}
}
}
Try it Yourself »
Related Pages
Window Object: setInterval() Method
Window Object: setTimeout() Method
Window Object: clearTimeout() Method
Window Object
