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JavaScript setTimeout Function - JavaScript Timing Events November 16, 2007 by Blogging Developer JavaScript features a couple of methods that lets you run a piece of JavaScript code (javascript function) at some point in the future. These methods are: * setTimeout() * setInterval() In this tutorial, I'll explain how setTimetout() method works, and give a real world example. You may find the details of setInterval() method in JavaScript setInterval Function - JavaScript Timing Events setTimeout() window.setTimeout() method allows you to specify a piece of JavaScript code (expression) will be run after specified number of miliseconds from when the setTimeout() method is called. Syntax var t = setTimeout ( expression, timeout ); The setTimeout() method returns a numeric timeout ID which can be used to refer the timeout to use with clearTimeout method. The first parameter (expression) of setTimeout() is a string containing a javascript statement. The statement could be a call to a JavaScript function like "delayedAlert();" or a statement like "alert('This alert is delayed.');". The second parameter (timeout), indicates the number of miliseconds to pass before executing the expression. Example An alert box will be shown 5 seconds later when you clicked the button. clearTimeout() Sometimes it's useful to be able to cancel a timer before it goes off. The clearTimeout() method lets us do exactly that. Its syntax is: clearTimeout ( timeoutId ); where timeoutId is the ID of the timeout as returned from the setTimeout() method call.

The Problem With Dynamic JavaScript However, what if the JavaScript file where you need to set breakpoints is not static but instead dynamic (generated on the fly). If you set a breakpoint in this case and reload the page, the breakpoint will most likely disappear, especially if the JavaScript url is generated uniquely every time. The Solution If you have access to the source, the solution comes in the form of the debugger; keyword. Just add it to your dynamic JavaScript generator or into any JavaScript file you have access to exactly where you want Firebug to break, and voila - it does.

Here we are at the end of another month, so it's time to get an overview of the most popular jQuery plugins from July 2012. No matter what kind of project you are developing, some of these plugins will definitely come in handy.

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"There are many times I want to leverage jQuery's strengths to create a custom Google Maps mashup. In this tutorial, I will walk you through how to get started using jQuery inside the Google Maps environment. I will assume nothing, and explain each piece in detail."

Jonathan Tang has fallen into the Arc fun and took some time to fully implement it in JavaScript.

A fast, highly interactive, fun chat application using a javascript, comet (real time push communication), ajax (async posting of information) modern web interface, and a custom PHP based backend daemon that interfaces between the (web) frontend and the IRC backend server.

Wouldn't it be cool if you could work with MySQL within your JavaScript code? Think about it, you wouldn't have to spend extra time writing extra server-side code for connecting to, querying, and parsing results, you could just write a little bit more code in your JavaScript and be done with it. Of course, we wouldn't want any of this SQL exposed to the end-user, as that would be a major security issue, but what if that problem was solved as well? You might also raise the point that you'd still need the ability to prepare your SQL statements that take dynamic input to prevent SQL injection attacks, but if that weren't an issue, wouldn't that be awesome as well?

Marquee tool is a DHTML application that can save you time and help you in your future projects. It is the first web based Javascript tool that allows you to select rectangular areas on or elements, calculate selection coordinates, display them or send them to the server.

The YUI Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. YUI is available under a BSD license and is free for all uses. The YUI project includes the YUI Library and two build-time tools: YUI Compressor (minification) and YUI Doc (documentation engine for JavaScript code).

* Object.getPrototypeOf * Object.getOwnPropertyDescriptor * Object.keys * Object.defineProperty * Object.defineProperties * Object.create * Object.getOwnPropertyNames * JSON.stringify * JSON.parse * Date.now: Has been in JSC for a long time. * Date.prototype.toISOString * Date.prototype.toJSON * String.prototype.trim * "Array extras": Array.prototype.{indexOf,lastIndexOf,every,some,forEach,map,filter,reduce,reduce

Build-time error reporting, refactoring and code completion in Visual Studio Extended JavaScript syntax power with C# language features Pure client-side control library coded in C#

React offers different libraries, already written components, to add internationalization to the apps. Significantly reducing time and costs for the developers, these international libraries allow the app to function and be supported in any language around the world.

A very simple jQuery CMS that can be configured and set up in around 2 minutes. Plugging in to your site is a breeze, and can be done at almost any time during the life cycle of development. Note: This is a very small CMS, with no database requirements. Ideal for small sites, or where only a small amount of 'content management' is required. If your site requires all content to be databased, there are many other CMS programs already in existence to choose from, so then maybe this is not the right solution. :)

Sequentially is a library of temporal and frequency adverbs for JavaScript. It provides methods to queue a function for deferred or periodic execution, and to throttle the rate or number of times that a function can be called.