JavaScript and AJAX Web Development Tutorials

JavaScript, jQuery and AJAX (Asynchronous JavaScript and XML) Tutorials.
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Background Many time we found the file worm.vbs in our computer in each dir. worm.vbs may or may not be malicious. but when they execute's they consume CPU. So, Better option is to remove them. but it is tough job as they exist in each dir. I written a vbScript to...
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Let us make a form based clock that displays time in the 24 hour format. We use the Date() object to get the hours, minutes, seconds of the day. setTimeoiut() evaluates an expression or calls a function after a certain amount of time, specified in milliseconds. We use setTimeout() to call the...
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The DOM enabled parser is used for accessing the features of the application. The parser reads the XML document and parses to check that it is valid. The in memory representation of the XML document containing the elements is organized in the tree structure. There are nodes in the structure. ...
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Introduction Some characters are reserved in HTML. For example, you cannot use the greater than or less than signs within your text because the browser could mistake them for markup. If we want the browser to actually display these characters we must insert character entities in the HTML...
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So i was working on an awesome project when i wanted to extract GET parameters from the URL string. Like in php $_GET, i need to use javascript since the front end is building on an REST API . You probably should ave seen this feature used in google search and may others, but the problem is...
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Many times we need to write certain parts of our script according to the browser, i.e. we need to detect the browser. Here's a snippet of how to do it. var userAgent = navigator.userAgent.toLowerCase(); var is_opera = (userAgent.indexOf('opera') != -1); var is_saf =...
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Feedburner statistics are not part of Google Analytics and I couldn't understand why but you can track Feedburner Email Subscription Form Submission in Google Analytics Very easily. Activate Email Subscription for your Feed in Feedburner and grab the HTML code of your subscription form. The HTML...
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The include element The element is used to refer to an external schema located in a definite address. The syntax for using the element is as shown below: <include id="ID" schemaLocation="filename" /> The element contains two attributes as id and schemaLocation. The id specifies the...
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Sometimes, we do not want people to copy the text on some of our web pages, here is a script which prevents user (not advanced users) from selecting the text. For better results put the JavaScript code inline and not in a separate JS file. // specify allowed tags for some browsers var...
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jQuery is a client-side JavaScript library, the goal of the library is to simply the process of writing cross-browser JavaScript code. jQuery was created by John Resig and it was released to the public in 2006, jQuery is free, open-source and is dual-licensed under the MIT license & GNU GPL Version...
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JavaScript is widely used for client side scripting ranging from simple effects to creating a rich UI like GMail. A significant operation with the client browser involves working with the browser window, like scrolling, resizing popup window, detecting window resize by the user, opening new...
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AJAX was a boon to web development and web applications like GMail etc. millions of site have since implemented AJAX based features on their websites, the idea of asynchronously accessing content was wonderful but AJAX was limited only to the same domain (same origin) as the page requesting the...
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JavaScript, the most popular & most used client-side scripting language on the internet is really powerful in creating rich user experience by itself. One of the best example of JavaScript excellence is the jQuery library which has helped developers all over the world to build the business...
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An XML document consists of several elements. The XML schema defines the list of elements and attributes that can be used in the XML document. The orders in which the elements appear are defined in the XML schema. The XML Schema Definition (XSD) defines the schema of the XML document. XML Schema...
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It is highly recommended that you are familiar with HTML and Javascript before reading tutorial. Notice that this article is only glimpse on this topic, it barely covers all the AJAX features and stuff. This tutorial will show you how 'Ajax' works and how to use it from a web developer's...
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When the user creates a document in HTML, the browser is capable of understanding and using the tags. When XML is used, the browser does not know how to display the elements. The XSL language is used for this purpose. The XSL language has two parts as follows XSL Transformation (XSLT): The...
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Desktop notifications for web applications is a great plus, the user can be notified irrespective of the current window/tab they are using. Chrome, which has the largest share of the browser market, supports desktop notification, also Safari, or any webkit based browser. You can easily...
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What is AngularJs? AngularJS is an open source web application framework; to be more precise, javascript framework. It is introduced mainly to address and overcome the challenges of developing single page applications (SPA). It is framework for front end model-view-controller (MVC) architecture,...
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How to add and remove entries in collection data Suppose we have a collection of data (array, list etc), which we are rendering into view using AngularJS framework. We want to add data into the collection as well as remove from it using Angular view. We can do it easily using some data binding...
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XML is used for designing the web pages in an application. XML means Extensible Markup Language. It is a markup language containing tags to define data. The tags used in the language contain the content specific meaning. The data is stored in a structured format. XML is a cross platform, hardware...
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