Mastering JavaScript Functional Programming - Second Edition

What we get

So does FP give you the five characteristics we just listed in the previous section?

• In FP, the goal is to write separate independent functions that are joined together to produce the final results.
• Programs that are written in a functional style usually tend to be cleaner, shorter, and easier to understand.
• Functions can be tested on their own, and FP code has advantages in achieving this.
• You can reuse functions in other programs because they stand on their own, not depending on the rest of the system. Most functional programs share common functions, several of which we'll be considering in this book.
• Functional code is free from side effects, which means you can understand the objective of a function by studying it without ...