dengjonathan

'}

dengjonathan

//OOP
class Parent {
  constructor(name, job) {
    this.name = name;
    this.job = job;
  }
}

const solo = new Parent('Han', 'smuggler'); // {name: 'Han', job: 'smuggler'}

dengjonathan

//OOP
class Parent {
  constructor(name, job) {
    this.name = name;
    this.job = job;
  }
}

const solo = new Parent('Han', 'smuggler'); // {name: 'Han', job: 'smuggler'}

dengjonathan

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});

const curry = (func, arg) => {
  return (...args) => func(arg, ...args);
};

const giveName = curry(giveProp, 'name');
const giveJob = curry(giveProp, 'job');
const giveHero = curry(giveProp, 'hero');

dengjonathan

// pure
const addOne = num => num + 1;

//impure: modifies input variable
const addOneImpure = num => num++;

//pure
const addOneToAll = arr => arr.map(addOne);

//impure: modifies input array

dengjonathan

//Ramda
const R = require('ramda');

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});

const givePropCurry = R.curry(giveProp);

const giveName = givePropCurry('name');
const giveJob = givePropCurry(giveProp, 'job');
const giveHero = givePropCurry('hero');

dengjonathan

//Ramda
const R = require('ramda');

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});

const givePropCurry = R.curry(giveProp);

const giveName = givePropCurry('name');
const giveJob = givePropCurry('job');
const giveHero = givePropCurry('hero');

dengjonathan

//Ramda
const R = require('ramda');

//this is the same as
const makeRen = obj => giveHero(
  'Darth Vader',
   giveName('Kylo', obj)
);

// this

dengjonathan

const R = require('ramda');

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});

const givePropCurry = R.curry(giveProp);

const giveName = givePropCurry('name');
const giveJob = givePropCurry('job');
const giveHero = givePropCurry('hero');

dengjonathan

//Ramda
const R = require('ramda');

const giveProp = (propName, prop, obj) => Object.assign({}, obj, {[propName]: prop});
const givePropCurry = R.curry(giveProp);
const giveName = givePropCurry('name');
const giveJob = givePropCurry('job');
const giveHero = givePropCurry('hero');

const giveJobSmuggler = giveJob('smuggler')