HTML5 and CSS3, Second Edition

html5_canvas/javascripts/graph.js

➤ $(document).ready(function(){

varcanvas= document.getElementById('browsers');

if(canvas.getContext){

canvasGraph();

});

}

➤

Now everything works in Internet Explorer 8, as well!

Using the canvas has an additional benefit—it got us to start thinking about

a fallback solution from the beginning, rather than trying to wedge something

in later. That’s really good for accessibility. This is one of the most accessible

and versatile methods available for graphing data. You can easily create the

visual representation as well as a text-based alternative. This way, everyone

can understand the important data you’re sharing.

Now let’s look at a completely different way to draw things in the browser.

report erratum • discuss

Graphing Statistics with RGraph • 125

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