The article in which author explores one of the foundation of Functional Programming, I/O and how to cope with it. Written by Nicolas Fränkel a developer advocate with 15+ years experience consulting for many different customers.
The content of the article:
- Purity, side-effects, and I/O
- Applying the theory
- Higher-Order functions: purity and laziness
- Handling different function signatures
Purity is one of the foundations of FP. Side-effects in general, and I/O in particular, breaks purity. A straightforward way to cope with I/O is to wrap functions into other functions to create higher-order functions.
Even better, higher-order functions provide laziness, and all their associated benefits. The complete source code for this post can be found on Github. Good read![Read More]