skt-t1-byungi

app => application
acc => accumulate
arr => array
abs => absolute
addr => address
arg => argument
args => arguments
attr => attribute
attrs => attributes
auth => authenticate

indongyoo

function reduce(f, acc, iter) {
  if (arguments.length == 2) {
    iter = acc[Symbol.iterator]();
    acc = iter.next().value;
  }
  for (const a of iter) acc = f(acc, a);
  return acc;
}

reduce((a, b) => a + b, function*() {

hg-pyun

// ES6
function* foo(){
  yield bar();
}

// ES5 Compiled
"use strict";

var _marked = /*#__PURE__*/ regeneratorRuntime.mark(foo);

hg-pyun

// ES7
async function foo() {
  await bar();
}

// ES5 complied
let foo = (() => {
  var _ref = _asyncToGenerator(function*() {
    yield bar();
  });

hg-pyun

function* idMaker(){
  var index = 0;
  while(index < 3)
    yield index++;
}

const gen = idMaker();

console.log(gen.next().value); // 0
console.log(gen.next().value); // 1

hg-pyun

const arr = [];
for(let i=0; i<100; i++) {
  arr.push(0);
}
console.log(arr);

hg-pyun

const iterable = {
  [Symbol.iterator]() {
    return {
      i: 0,
      next() {
        if (this.i < 3) {
          return { value: this.i++, done: false };
        }
        return { value: undefined, done: true };
      }

hg-pyun

/* array */
let iterable = [10, 20, 30];

for (let value of iterable) {
  console.log(value); // 10 20 30
}

/* string */
let iterable = "boo";

hg-pyun

// react
const handleChange = (fieldName) => (event) => {aveField(fieldName, event.target.value)}
<input type="text" onChange={handleChange('email')} ... />

hg-pyun

getters: {
 // ...
  getTodoById: (state, getters) => (id) => {
  return state.todos.find(todo => todo.id === id) }}
  store.getters.getTodoById(2) // -> { id: 2, text: '...', done: false }