In fact, this particular pattern is sometimes used as part of the requirements of other, more complex ones. Due to the way JavaScript scopes works, using IIFEs can be great to simulate things like private properties in classes. The first pattern we’ll explore is one that allows you to define and call a function at the same time. Immediately Invoked Function Expressions (IIFE) In fact, books have been written exclusively about this topic and every year new patterns are created, leaving their lists incomplete.Ī very common classification for the pattern is the one used in the GoF book (The Gang of Four Book) but because I’m going to review just a handful of design patterns, I will ignore the classification and simply present you with a list of patterns you can see and start using in your code right now. When it comes to design patterns, there are too many of them to cover in just one article. Although, given JavaScript’s flexibility, you can implement these concepts in non-OOP projects as well. Immediately Invoked Function Expressionsĭesign patterns are a way for you to structure your solution’s code in a way that allows you to gain some kind of benefit, such as faster development speed, code reusability, etc.Īll patterns lend themselves quite easily to the OOP (object-oriented programming) paradigm.
In this article, we will look at how to identify these patterns out in the wild and look at how you can start using them in your own projects. Learn more about the latter in this article.ĭesign patterns are part of the day to day of any software developer. A guide to Node.js design patternsĮditor’s note: This article was last updated on 20 March 2023 to include a section on the builder, prototype, and dependency injection design patterns. Author of books and maker of software things. Fernando Doglio Follow Technical Manager at Globant.
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