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Other References

CSSStyleDeclaration JS Conversion


Window clearInterval() Method

❮ Window Object

Example

Display the current time (the setInterval() method will execute the "myTimer" function once every 1 second).

Use clearInterval() to stop the time:

var myVar = setInterval(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 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.

clearInterval(myVar);

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(var)

Parameter Values

Parameter Description
var Required. The name 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(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