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

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

//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

'}

dengjonathan

{
  "name": "how_far_hr",
  "version": "1.1.0",
  "engines": {
    "node": "5.12.0"
  },
  "description": "A small toy app showing HR progress with React and ES6",
  "author": "Jon Deng <jondeng.com>",
  "license": "MIT",
  "private": false,

dengjonathan

{
  "plugins": ["react-hot-loader/babel"],
  "ignore":[]
}

dengjonathan

{
  "name": "how_far_hr",
  "version": "1.1.0",
  "engines": {
    "node": "5.12.0"
  },
  "description": "A small toy app showing HR progress with React and ES6",
  "author": "Jon Deng <jondeng.com>",
  "license": "MIT",
  "private": false,

dengjonathan

{
  "parser": "babel-eslint", // I want to use babel-eslint for parsing!
  "rules": {
    "comma-dangle": 0, // dangling commas are ok
    "indent": [2, 2, {
      "SwitchCase": 1
    }],
    "jsx-quotes": 1,
    "linebreak-style": [2, "unix"],
    "quotes": [2, "single"],

dengjonathan

{
  "parser": "babel-eslint", // I want to use babel-eslint for parsing!
  "rules": {
    "comma-dangle": 0, // dangling commas are ok
    "indent": [2, 2, {
      "SwitchCase": 1
    }],
    "jsx-quotes": 1,
    "linebreak-style": [2, "unix"],
    "quotes": [2, "single"],