module
개념을 서비스에 사용하려면 webpack 기반의 ES5로의 트랜스파일링 babeling 과정이 필요하다.
// myLogger.js
function log(data) {
console.log(data);
}
export default log;
// app.js
import log from "./myLogger";
const root = document.querySelector('#root');
root.innerHTML = `<p>Hello World</p>`;
log('vicky test'); // vicky test
// CodeSquad.js
/* Class */
export default class CodeSquad {
constructor(props){
this.lectures = ['java', 'iOS'];
}
getLectures() {
return this.lectures;
}
getCurrentHour(){
return (new.Date).getHours();
}
getTime() {
return Date.now();
}
}
/* utility.js */
const _ = {
log(data) {
if(window.console) console.log(data);
}
}
export default _;
// app.js
import CodeSquad from "./CodeSquad";
import _ from "./utility";
_.log('vicky test'); // vicky test
const cs = new CodeSquad();
_.log(`current hour is ${cs.getCurrentHour()}`); // current hour is 11
_.log(`lectures of Codesquad are ${cs.getLectures}`); // lectures of Codesquad are java, iOS