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Today's mobile devices have GPS and standard APIs to give you access to coordinates--but what can you do with that data? With this concise book, application developers learn how to work with location data quickly and easily, using Node.js, CouchDB, and other open source tools and libraries.

Node.js makes it simple to run event code on the Web, and the CouchDB document-oriented database lets you store location data and perform complex queries on it quickly. You'll learn how to get started with these tools, and then use them together to build an example project called MapChat,...

The guitar playing aspirations of sisters Natalie and Madolyn, rapidly disappeared once they were signed up for guitar lessons. They found that it intruded on more exciting things like playing with friends and wanted to find a way out of having to practice.

In her spare time and just for fun, Madolyn would pretend she was a magician casting spells and making wishes, never trusting they would come true.

That night the sisters were so fed up with practice that Madolyn decided to use her magic power on their guitars with hopes that they would practice themselves. What happened...