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Node.js Design Patterns - Second Edition by Luciano Mammino, Mario Casciaro

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Chapter 7. Wiring Modules

The Node.js module system brilliantly fills an old gap in the JavaScript language: the lack of a native way of organizing code into different self-contained units. One of its biggest advantages is the ability to link these modules together using the require() function (as we have seen in Chapter 2, Node.js Essential Patterns), a simple yet powerful approach. However, many developers new to Node.js might find this confusing; one of the most frequently asked questions is in fact: what's the best way to pass an instance of component X into module Y?

Sometimes, this confusion results in a desperate quest for the Singleton pattern in the hope of finding a more familiar way to link our modules together. On the other hand, some ...

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