Dojo, Now with Drawing Tools!
Listing 4. Drag-and-Drappable Dominoes
Perhaps the ultimate test of an API is a few good examples of what you can build with it. One of the ultimate demonstrations of gfx's flexibility and power is Dojo's charting library, another DojoX subproject. A comprehensive introduction of the charting library would entail an article of its own, so until that time comes, you can find some great documentation on Dojo charting from the Dojo Key Links page. And, of course, you always can read over the source, which is located in the dojox.charting module of the toolkit's source code, if you want to get an idea of how much work goes into aligning labels, drawing tick marks and so on.
In addition to equipping you with many of the basic charts you'd want to use in a Web application, charting recently got a boost with a number of cool new features, including event support so that custom tooltips and animations can occur within charts—that kind of visual flair makes all the difference. To give you an idea of just how easy the charting API is to get up and running, consider the code blurb in Listing 5 that shows how to create a chart.
Pick up any e-commerce web or mobile app today, and you’ll be holding a mashup of interconnected applications and services from a variety of different providers. For instance, when you connect to Amazon’s e-commerce app, cookies, tags and pixels that are monitored by solutions like Exact Target, BazaarVoice, Bing, Shopzilla, Liveramp and Google Tag Manager track every action you take. You’re presented with special offers and coupons based on your viewing and buying patterns. If you find something you want for your birthday, a third party manages your wish list, which you can share through multiple social- media outlets or email to a friend. When you select something to buy, you find yourself presented with similar items as kind suggestions. And when you finally check out, you’re offered the ability to pay with promo codes, gifts cards, PayPal or a variety of credit cards.Get the Guide
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