Mastering JavaScript Design Patterns

Summary

JavaScript is not a functional programming language. That is not to say that it isn't possible to apply some of the ideas from functional programming to it. These approaches enable cleaner, easier-to-debug code. Some might even argue that the number of issues will be reduced, although I have never seen any convincing studies on that.

In this chapter, we looked at six different patterns. Lazy instantiation, memoization, and immutability are all creational patterns. Function passing is a structural pattern as well as a behavioral one. Accumulators are also behavioral in nature. Filters and pipes don't really fall into any of the GoF categories, so one might think of these as a style pattern.

In the next chapter, we'll look at a number of patterns ...