Posts tagged ‘JavaScript’

Google Web Toolkit (GWT) – Create Ajax applications in Java: Examples and Concepts

GWT imageGoogle Web Toolkit (GWT) is an open source Java software development framework that allows web developers to create Ajax applications in Java. It is licensed under the Apache License version 2.0.

GWT emphasizes reusable, efficient solutions to recurring Ajax challenges, namely asynchronous remote procedure calls, history management, bookmarking, and cross-browser portability.

Google Web Toolkit (GWT) is an open source Java development framework that lets you escape the matrix of technologies that make writing AJAX applications so difficult and error prone. With GWT, you can develop and debug AJAX applications in the Java language using the Java development tools of your choice. When you deploy your application to production, the GWT compiler translates your Java application to browser-compliant JavaScript and HTML.

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Continue Reading 24 July, 2008 at 20:00 10 comments

JSON (JavaScript Object Notation): Concepts, Methods, Examples and Security Threats

JSON logoJSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition – December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.

JSON is built on two structures:

  • A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
  • An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.

These are universal data structures. Virtually all modern programming languages support them in one form or another. It makes sense that a data format that is interchangable with programming languages also be based on these structures.

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Continue Reading 22 July, 2008 at 12:41 8 comments

jQuery: JavaScript library

JqueryjQuery is a lightweight JavaScript library that emphasizes interaction between JavaScript and HTML. It was released January 2006 at BarCamp NYC by John Resig.

Dual licensed under the MIT License and the GNU General Public License, jQuery is free and open source software.

“You start with 10 lines of jQuery that would have been 20 lines of tedious DOM JavaScript. By the time you are done it’s down to two or three lines and it couldn’t get any shorter unless it read your mind.” – Dave Methvin

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Continue Reading 25 June, 2008 at 19:49 Leave a comment

JavaScriptMVC – JavaScript Framework

Developers generally neglect JavaScript testing because there’s really nothing out there that let’s you simulate user interactions easily. Here comes the Test plugin (Thanks to Brian Moschel from JavaScriptMVC for suggesting this resource).

It lets you simulate every major DOM event, as well as some combination events like Write and Drag, and then run functional and unit tests in a separate console window.

To enable JavaScriptMVC’s high level goals, JavaScriptMVC contains the basic language and browser abstractions of other libraries.

  • Ajax – Updates content without refreshing the page.
  • Class – An easy to use, lightweight class system.
  • Event – Register events without worrying about memory issues.
  • Inflector – Handy string helpers for pluralizing and singularizing strings.
  • Helpers – String, Array, Function and Object extensions.
  • Query – CSS DOM element selection.

And JavaScriptMVC has few advanced features such as:

  • History – provides back, forward, and refresh functionality.
  • Remote – perform cross domain reads and writes.

Continue Reading 20 June, 2008 at 12:14 Leave a comment

Prototype JavaScript Framework

Prototype JavaScript Framework is a JavaScript framework created by Sam Stephenson which provides an Ajax framework and other utilities. It is implemented as a single file of JavaScript code, usually named prototype.js. Prototype is distributed standalone, but also as part of larger projects, e.g. Ruby on Rails, and Rico.

Continue Reading 10 June, 2008 at 23:35 Leave a comment

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