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To cancel a setTimeout() method from running, you need to use the clearTimeout() method, passing the ID value returned when you call the setTimeout() method. You need to pass the amount of time to wait for in milliseconds, which means to wait for one second, you need to pass one thousand milliseconds. The JavaScript setTimeout() method is a built-in method that allows you to time the execution of a certain function. If you have multiple setTimeout() methods, then you need to save the IDs returned by each method call and then call clearTimeout() method as many times as needed to clear them all. You can think of the method as a way to set a timer to run JavaScript code at a certain time.įor example, the code below will print "Hello World" to the JavaScript console after 2 seconds have passed: setTimeout(function() has been cleared`) clearTimeout() method in action The setTimeout() method allows you to execute a piece of code after a certain amount of time has passed. This tutorial will help you to understand how the built-in JavaScript method setTimeout() works with intuitive code examples.