Jump Start Node.JS by Don Nguyen

By Don Nguyen

Node.js is altering the best way net apps are outfitted. As Node.js apps are written in JavaScript, you could quick and easily use your front-end talents to enhance staggeringly quickly, scalable real-time internet applications.Read this publication and, in a weekend, you'll the way to: enhance a whole operating Node.js program - from start-to-finish set up your new program to a construction server Scale your tasks speedy and affordably PLUS notice the best way to use Twitter Bootstrap, MongoDB and Back-bone.js to create fancy internet apps, expand their garage, and dynamically replace them.

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A Quick Test Our first objective for this chapter is to write a module that can: ■ connect to MongoDB ■ insert a business transaction ■ retrieve a transaction Let’s begin the chapter with some unit tests, and extend what we built in the previous chapter. All the following instructions should be executed in the same directory that you’ve been using thus far. volume); done(); }); }); }); Let’s look at the main functions of that code. In the first test, we open up a connection to MongoDB. If this stage fails, all subsequent tests will fail, and so we’ll know that a successful connection has yet to be established.

ToString(); }) If there is an error, we print the message and then throw the error. Finally, 'end' indicates that all the data has been received, at which point we print the prices. 43,"6/22/2012" We’ll make more use of this data in subsequent chapters, but that’s all for now. ” —Donald E. Knuth Why MongoDB? In this chapter, we’ll learn to use MongoDB. MongoDB is a particular type of NoSQL database; specifically, it’s a document-oriented database system. js ecosystem has excellent support for many popular relational database systems such as PostgreSQL and MySQL.

It can output results in a variety of formats, making it easy to integrate with other testing tools. Create a new folder to house this chapter’s project and within it create a subdirectory called test. js (excerpt) test('buy should add a BUY nockmarket order', function(done) { }); The first part of any test is to provide a plain English description of what the test does. Therefore, even somebody completely unfamiliar with programming should have an understanding of what the test is trying to accomplish.

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