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4/06/2015

[Book Review] Mastering JavaScript Design Patterns

Mastering JavaScript Design Patterns (MJDP) is another book Packt graciously sent me. This book is divided in two parts. The first part is about Gang Of Four (GoF) classical Design Patterns the other part is about other well know patterns.

TL;DR: Overall the book is good enough and will be perfect for developers with little experience in software development.

However be careful with the following points below:
  • UML diagrams are not descriptive as they should be, "memberName" should not be written multiple times as class attributes
  • The part where the author said that singleton could not be created in JavaScript in a OOP way is plain wrong
  • In the Functional Programming chapter, JavaScript examples could have been written better. Using a for loop instead of map (IE9+) is disappointing (to say the least!)
  • The MV* chapter does not follow the Separation of Concerns principle well enough
    • View initialization and rendering are done inside the constructor (they should not be)
    • Model attributes are too often manipulated inside the controller
    • State information is duplicated (e.g. IsValid in ValidationResult)
    • A dispose (or release) method is missing for clean life-cycle management
    • bind (IE9+) should be used instead of the old _this workaround

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Made with on a hot august night.
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