Functional & Declarative Programming

An Introduction to Reactjs with the fundamentals of functional programming and taking advantages of react's declarative approach.

Transcript

1. ❖ UAB ❖ Bongohive ❖ Community lead ❖ OpenSource ❖ Javascript Olivier JM Software Developer @olivierjm
2. Functional Programming declaratively Another Introduction to Reactjs
4. Why Functional Programming in Javascript ? The fact that functions are first class in Javascript makes Javascript a power house of functional programming.
5. Benefits ❖ Predictable Code ❖ Immutability ❖ No Side Effects ❖ Declarative Approach ❖ Easy Testing ❖ Readability ❖ Etc ...
6. FP Usage ❖ Angular ❖ React ❖ Rxjs ❖ Redux * ❖ Lodash *
9. If you can call a function twice and get different results then that function is impure. FP
11. Declarativity. Declarative programming is a programming paradigm in which the programmer defines what needs to be accomplished by the program without defining how it needs to be implemented.
12. Consider SQL or HTML Let's do some examples
16. Benefits ❖ Readability ❖ Reusability ❖ Eg: upsert() ❖ More focus ❖ Etc ..
18. More Demo Mistakes and How to Avoid them
19. Twitter: @olivierjmm Github: @olivierjm Medium: @olivierjm Q and A