Square One Web Solutions Blog » XML, AJAX, Java Script

Ajax Form Validation And Thread-safe Ajax

pathik — Thu, 03 Dec 2009 10:31:36 +0000

This is the PHP and AJAX form validation application you can create AJAX and PHP: Building Responsive Web Applications.

This degradable form validation demo verifies the form at the server side on the classic form submit, and also implements

AJAX validation while the user navigates through the form.

Degradable AJAX Form Validation

Top Five JavaScript Frameworks – How Do They Compare?

pathik — Fri, 13 Nov 2009 08:09:34 +0000

There are many JavaScript frameworks available today for programming rich client-side interactions in web applications. With many such different options, it is important to choose a framework that not only serves your current requirement, but also serves you in the long run. We drew up a visual comparison between Ext JS and four other popular JavaScript frameworks: Prototype, Dojo, JQuery and YUI. Our detailed comparison spanned 20 different attributes. In addition to feature-set and technical comparisons, we also looked at parameters such as community support, design principles and quality of documentation and samples to provide a sense of the framework’s durability.

Overall, Ext JS and JQuery came out strong with respect to their support of basic technical features. Both are upcoming frameworks that show commitment towards robustness of design and conceptual modeling that is needed for serious web applications. Ext JS has a rich library of widgets, both of them integrate with other JavaScript libraries in some manner, and both can model complex user interactions in their own way. Ext JS is emerging as an “industry-strength” framework and is being increasingly used in the enterprise. Ext JS also supports a robust client-side data model and support for component model and design patterns.

Your initial choice of JavaScript framework is an important one and the differences between these frameworks can be subtle. Being client-side technologies, these frameworks handle multiple priorities like usability, scripting ease, support for browsers, performance and many others, and making an informed choice about these technologies requires thorough analysis.

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What is AJAX, With The Clearest Explanation?

pathik — Wed, 11 Nov 2009 09:23:14 +0000

AJAX, is a new looking angle for web applications. Abbr. Asynchronous JavaScript and XML (AJAX). As you can understand from its name it’s not related with a bleaching liquid brand in any way

AJAX, is a new looking angle for web applications. Abbr. Asynchronous JavaScript and XML (AJAX). As you can understand from its name it’s not related with a bleaching liquid brand in any way.

In fact AJAX, is not a new technology like it’s known. I always advocate the thesis of AJAX is a tech. But seems like http://www.gmail.com s user interface that has totally been prepared with AJAX is found attractive by most of web designers so AJAX made a big explosion. Recently http://www.yahoo.com has also joined this glut. Right now many web designers are trying to learn AJAX to be able to apply this new technique to their websites.

By using AJAX, connecting to web server without refreshes is possible. Think a web form, there is a text field for an e-mail address, and a button for submitting the form. At classic web applications when you click on button browser redirects you to another URL address and there necessaries controls are being made and saved to database and for last you see the result message. In fact that kind of applications is never useful for website owners; because new control and saving page needs some of server resources. And it means an addition to hosting outcome. But AJAX technique is completely wiping up the new page creating process. Just one data connection happens between browser and web server. Also that data amount is an extremely little value. I guess there is no need to say AJAX applications are both good for website owners and Internet users. Additionally web sites made by using AJAX are gorgeous looking and simple to use applications.

Xml: Scripting for the Web and Beyond

pathik — Tue, 10 Nov 2009 08:37:01 +0000

HTML was written with one main goal in mind – to define a language that allowed the formatted display and presentation of information across as many platforms as possible, be it text, graphics or even added flexibility through scripting languages to allow interaction within the browser; and server databases have caused an explosion in the volume of information available nowadays.

All is not well, though. Developers are struggling to keep pace with the complexities of maintaining large sites that are compatible across browsers, where a lot of the information is changing on a daily basis. There is also a lot of repetition of information both within a single site and across the Web as a whole and somehow the ends need to be tied up. Surely databases are the answer? Well, yes and no. True, a database can act as the shared source, but not everybody uses or has access to a particular database format. Enter stage right, XML – eXtensible Markup Language.

Why Another Language?

XML, like HTML, has its roots in the Standard Generalized Markup Language (SGML), but shares even more of its features. A great limitation with HTML is that it has driven Web development down a one-way street; content gets produced and displayed but it is very difficult to later extract meaningful information from the mixture of tags and text.

Make Your Website Interactive Using JavaScript

pathik — Fri, 06 Nov 2009 08:35:15 +0000

Many wise programmers use JavaScript to accomplish various activities related to form validation, browser identification, advertisement management etc. Using JavaScript effectively brings life to a website. It makes a website more user-friendly and interactive. Using JavaScript for client side programming helps a web page to act like a windows application. It also helps to make a web page feature rich and improves the performance of the website. There are thousands of ready made scripts useful for different purposes are freely available in the Internet, which you can use on your web site.

JavaScript can be used with any language normally used for web programming. Whether you are developing a PHP website or ASP for the server side programming, you can use JavaScript to handle all the client side activities.

Ajax and JavaScript

Ajax (Asynchronous Javascript And XML) is another emerging concept using Javascript. Usually a web page has to be refreshed every time a user requests some data. This result in a time delay and user can loose interest in the website. If you are using Ajax, it helps a website to display contents without even a need to refresh the web page. Ajax uses XML and JavaScript to make this happen. It also helps to transfer large amount of data from server side to client side without much delay using XML.

What is Ajax?

pathik — Thu, 05 Nov 2009 08:03:26 +0000

We were getting a number of queries from our clients and friends, asking about what AJAX is?

The Low-down On Javascript

pathik — Wed, 04 Nov 2009 06:30:23 +0000

JavaScript first emerged in 1996 and was a programming language written by Brendan Eich for Netscape. Initially, it was developed so the code could be embedded in Web pages so it could process numbers and modify the contents of forms. Over the years, the use of JavaScript code has increased exponentially and is now used in a great many ways, including image manipulation and mouse-over effects etc. Although it is now such a popular programming language in it’s own right, there are few minor niggles and issues to be aware of.

Advantages

Speed – because all the code resides on what is known as the =91client-side’, response times are fast. The alternative to client-side is known as =91server-side’ and this involves your computer having to wait for a response from a command or instruction to a computer server somewhere out on the Web.

Simplicity – JavaScript as a computer language is not too difficult to learn and there are stacks of resources available on the Internet to help you. It is also possible to download masses of high quality code example free-of-charge and this can help you to reduce time demands and also to assist you in understanding the language dynamics.

AJAX Technology for Giving Better Look to your Website

pathik — Mon, 02 Nov 2009 08:03:41 +0000

AJAX is a unique programming language that can be used on various types of operating systems and web applications that is based on DOM and Java Script. It uses client-side scripting for exchange of important data, making it one of the strong approach of web application technique. This programming language increases the chances of fast responses of user interface and interaction as it can establish independent communication with the web server.

In earlier days the process of web browsing comprises of a new web page interacting with every single user’s request. It leads to dynamic web application user interface that creates obstacle in effective usage of desktop applications. The main aim of AJAX is increasing a web page’s interaction, functionality, usability and speed.

This concept is combination of different computing technologies instead of a single one. You can find different types of web applications like CSS and XHTML in AJAX for giving standardized web presentations. XML and XSLT is used for data exchange between the client and the server, Document Object Model is used for better display and interaction, for standardized presentation CSS and XHTML is used, Java Script is used as code for AJAX application and for sharing data with web server using XMLHttp request.

Lets us see how a typical web application functions. The older version of web interface sends an HTTP request back to the web server. After that it is processed and retrieved before getting back the HTML page to its users. But the main drawback of this process is the web application does not make the user interface as functional and as interactive as compared to AJAX.

AJAX is the solution to all above mentioned problems. It uses AJAX engine to fasten the loading of web applications which works as an intermediary between server and the users. One of the biggest benefit of AJAX engine is it allows the application and user interface to exchange data which is not dependent to the server communication. Thus there is never a communication gap between the web and the users.

It is a very strong technique that grows along with the growth of web application. Now-a-days it is being considered as guiding factor with the advent of web 2.0. More number of marketing and business sites are being connected with AJAX application server platform. Various popular services like Google maps, gmail, photo sharing application; Yahoo! Maps, etc are supported by this programming language. It supports simple functions to complex ones.

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JavaScript and Ajax

pathik — Thu, 29 Oct 2009 06:56:10 +0000

JavaScript is client side scripting language. When you open a web page your web browser first downloads all the necessary files from the server to display that page correctly. Those necessary files are HTML, CSS, Images, Videos, etc and the JavaScript files too. After completing download the browser displays that page on its window and any script linked with it will run from the downloaded script file.

In Ajax technology, user inputs and other data are sent to the web server through JavaScript. JavaScript creates XML_HTTP_REQUEST_OBJECT to connect with the server, submit data to it, and to request a response from the server. When response comes, a JavaScript event fires and the function associated with that event is then executed. So in Ajax technology JavaScript is only used to transfer data between client side and the server side while the main program, i.e. data processing is executed at the server end, in PHP or any other server side language.

As JavaScript runs from the client computer its execution time is very short, almost instantaneous. Viewers can run JavaScript without being connected with the server as well. But in Ajax, viewers must be connected to the server. Here execution time is much longer which depends on their Internet connection speed, server hardware and number of bytes to be transferred between client side and server side.

In terms of server security JavaScript is absolutely safe since it doesn’t transfer any user input from client side to the server. But in Ajax you have to take special care to prevent any malicious data from the bad users.

Understanding the Multifarious Aspect of XML Application

pathik — Wed, 28 Oct 2009 06:14:17 +0000

The studio of XML is primarily responsible for the work development and creation of applications of XML but the utilitarian advantage is beyond the boundaries in various other aspects as well. This can be very well understood through a deeper understanding of the different types of functional attributes that are associated with this particular concept.

Therefore the functional benefits associated with the broad applications of XML are as follows:

- XML editor helps to make the task of writing of computer programs and authenticating XML documents much simpler and easier in their style.

- XML Editor Validation – This application verifies the XML data to make sure that the formulation of the content is done in a proper and suitable manner .at the same time the verification is also performed to make sure that the document is completely legitimate against any related XML Schema. The XML Editor notifies the user about the degree of substantiation accomplished and features any mistakes in the XML Data.