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window.clearTimeout

Summary

Clears the delay set by window.setTimeout().

Syntax

window.clearTimeout(timeoutID)

Example

Run the script below in the context of a web page and click on the page once. You'll see a message popping up in a second. If you keep clicking on the page once in a second, the alert never appears.

var alarm = {
  remind: function(aMessage) {
    alert(aMessage);
    delete this.timeoutID;
  },

  setup: function() {
    this.cancel();
    var self = this;
    this.timeoutID = window.setTimeout(function(msg) {self.remind(msg);}, 1000, "Wake up!");
  },

  cancel: function() {
    if(typeof this.timeoutID == "number") {
      window.clearTimeout(this.timeoutID);
      delete this.timeoutID;
    }
  }
};
window.onclick = function() { alarm.setup() };

Notes

Passing an invalid ID to clearTimeout does not have any effect (and doesn't throw an exception).

Specification

DOM Level 0. Specified in HTML5.

See also

Document Tags and Contributors

Last updated by: Dria,