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Canvas tutorial

<canvas> is an HTML element which can be used to draw graphics using scripting (usually JavaScript). It can, for instance, be used to draw graphs, make photo compositions or do simple (and not so simple) animations. The image on the right shows some examples of <canvas> implementations which we will see later in this tutorial. <canvas> was first introduced by Apple for the Mac OS X Dashboard and later implemented in Safari and Google Chrome. Gecko 1.8-based browsers, such as Firefox 1.5, also support this element. The <canvas> element is part of the WhatWG Web applications 1.0 specification also known as HTML5. Canvas tutorial
The HTML5 test - How well does your browser support HTML5?

The HTML5 test - How well does your browser support HTML5?

The HTML5 test score is an indication of how well your browser supports the upcoming HTML5 standard and related specifications. Even though the specification isn't finalized yet, many features are already supported and all major browser manufacturers are making sure their browser is ready for the future. Find out which parts of HTML5 are already supported by your browser today and compare the results with other browsers. The HTML5 test does not try to test all of the new features offered by HTML5, nor does it try to test the functionality of each feature it does detect. Despite these shortcomings we hope that by quantifying the level of support users and web developers will get an idea of how hard the browser manufacturers work on improving their browsers and the web as a development platform.
HTML5 Microzone | DZone Ariya Hidayat Tracking JavaScript Annotations One of the interesting features of Esprima is to retrieve every comment inside a JavaScript source. Even better, each comment can be linked to the related syntax node. This is very helpful since any additional information regarding the program can be provided via the comment serving as a form of annotation. HTML5 Microzone | DZone