functionalJS

This is the repo for all funcitonal programmming related to JavaScript.

What is an app?

Most app are list of data presented in meaningfull way

To be good at building an app you must be good at three things:

DATA

List of DATA

DATA Transformations

Pareto Principle : 20% of work result in 80% of result.

• You need to know 20% of JavaScript to code 80% of any app. *

What are those 20% of JavaScript?

Primitive Types

String

Number

Boolean

Undefined // Usually you don't choose it.

null

Arrays - A collection of anything

Object Literals

Record is a better description of word object literals.

const meal = { description: 'Breakfast' calories: 180 date: new Date(2021,0,1) }

Array []

const meal = [ { description: "Breakfast", calories: 100, }, { description: "Lunch", calories: 200, }, ];

#functions

allows you to reuse code and transform values

function(){}

Conditional

if{} else{}

? :

Immutable data

Data that never changes