Using Timers in JavaScript (Page 1 of 7 )
JavaScript's Window object comes with four methods that you can use to create timed or looping events in your Web pages. In this article, I'll introduce you to them, and also show you a few examples of how they can be used in different situations.
Some of the most common and beneficial uses of JavaScript involve timer functions. These functions are used to run client-side code at predefined intervals, thereby making it possible to add a new dimension - time – to your Web pages. By using JavaScript's timing functions, you can run a command after a specified delay has passed, loop events to run over and over again at predefined times, and synchronize multiple events on a timeline. JavaScript's Window object comes with four methods that you can use to create timed or looping events in your Web pages. In this article, I'll introduce you to them, and also show you a few examples of how they can be used in different situations.
Over the course of this article, I'll be exploring the various timing functions available in JavaScript, together with examples of how they can be used to create timed events in an HTML document. I'll introduce you to the setTimeout(), clearTimeout(), setInterval() and clearInterval() functions, and also show you how to use them to create a variety of different client-side applications, including a tickertape, a timed slideshow, and a countdown clock. So come on in! If you're new to JavaScript, you're going to find this article to be quite an eye-opener!
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