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Client-side JavaScript
Client-side JavaScript is the most common form of the language. The script should be included in or referenced by an HTML document for the code to be interpreted by the browser.
It means that a web page need not be a static HTML, but can include programs that interact with the user, control the browser, and dynamically create HTML content.
The JavaScript client-side mechanism provides many advantages over traditional CGI server-side scripts. For example, you might use JavaScript to check if the user has entered a valid e-mail address in a form field.
The JavaScript code is executed when the user submits the form, and only if all the entries are valid, they would be submitted to the Web Server.
JavaScript can be used to trap user-initiated events such as button clicks, link navigation, and other actions that the user initiates explicitly or implicitly.
Advantages of JavaScript
The merits of using JavaScript are
Less server interaction You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.
Immediate feedback to the visitors They don't have to wait for a page reload to see if they have forgotten to enter something.
Increased interactivity You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.
Richer interfaces You can use JavaScript to include such items as drag-and-drop components and sliders to give a Rich Interface to your site visitors.
Limitations of JavaScript
We cannot treat JavaScript as a full-fledged programming language. It lacks the following important features
Client-side JavaScript does not allow the reading or writing of files. This has been kept for security reason.
JavaScript cannot be used for networking applications because there is no such support available.
JavaScript doesn't have any multithreading or multiprocessor capabilities.
Once again, JavaScript is a lightweight, interpreted programming language that allows you to build interactivity into otherwise static HTML pages.
JavaScript Development Tools
One of major strengths of JavaScript is that it does not require expensive development tools. You can start with a simple text editor such as Notepad. Since it is an interpreted language inside the context of a web browser, you don't even need to buy a compiler.
To make our life simpler, various vendors have come up with very nice JavaScript editing tools. Some of them are listed here
Microsoft FrontPage Microsoft has developed a popular HTML editor called FrontPage. FrontPage also provides web developers with a number of JavaScript tools to assist in the creation of interactive websites.
Macromedia Dreamweaver MX Macromedia Dreamweaver MX is a very popular HTML and JavaScript editor in the professional web development crowd. It provides several handy prebuilt JavaScript components, integrates well with databases, and conforms to new standards such as XHTML and XML.
Macromedia HomeSite 5 HomeSite 5 is a well-liked HTML and JavaScript editor from Macromedia that can be used to manage personal websites effectively.
Where is JavaScript Today ?
The ECMAScript Edition 5 standard will be the first update to be released in over four years. JavaScript 2.0 conforms to Edition 5 of the ECMAScript standard, and the difference between the two is extremely minor.
Today, Netscape's JavaScript and Microsoft's JScript conform to the ECMAScript standard, although both the languages still support the features that are not a part of the standard.
WHY LEARNING WITH US?
At Fu-VISION the JAVA SCRIPT training program is designed to enable web developers and others with limited programming experience to build dynamic database driven e-commerce web sites using the PHP programming language. Since PHP is such a rich and task-specific language, our training covers the most important range of functions in depth, and equips delegates to understand the remaining less essential aspects. PHP 5 is the current version of PHP and is what Fu- VISION teaches you.
EXPECTED TRAINING RESULT!!!
Write effective, efficient JAVA SCRIPT scripts
Embed JAVASCRIPT pages to create dynamic Web pages
Manipulate data from Web page forms
Track users as they navigate your site with cookies and other JAVASRIPT features
Structure JAVA SCRIPT code using user-defined functions and external libraries
Develop database-enabled Web applications using JAVA SCRIPT
CAREER PROSPECTS
As JAVA SCRIPT is simple, cheap, quick, and effective, the demand for JAVA SCRIPT developers is reasonably huge and growing very quickly. It is sooner becoming the dominant language in web development.
JOIN NOW ! LEARN EXACTLY AS THE WAY IT HAS TO BE WITH REAL- TIME PROJECTS AND GUARANTEED INTERVIEWS. WE ARE AN AUTHORISED TRAINING PARTNER IN MOST OF CLIENTS ARE LOOKING AT BEST TRAINED CANDIDATED. WE ASSURE YOU FOR THE BEST RESULTS, SO, WHAT ARE YOU WAITING FOR ???...OUR CLIENTS ARE WAITING FOR RECRUITING WHY NOT YOU BE THE NEXT TO GET PLACED....!!!!!
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