ECMAScript

Javascript

Language 기본

• var
  • function scope
• let
• const
• string에 추가된 method
  • startsWith
  • endsWith
  • includes
• for of - 순회하기

    var data = [1,2,234];
    data.forEach(function(value){
        console.log(data[value]);
    })
  

IIFE[Immediately Invoked Function Expression]

• “Iffy”라 발음 : 즉시호출함수표현…

    (function(d){
        let myday = new Date(d);
        myday.setFullYear(myday.getFullYear() + 1);
        return myday;
        })('2018.08.10');
  

Aboute DATE

날짜 포맷(yyyymmdd)출력하기(datepicker를 이용하여)

(function(p_date){
let startDate = new Date(p_date);
startDate.setDate(startDate.getDate() + 1);
return $.datepicker.formatDate('yy.mm.dd', startDate);
})("2018.09.12")

말일 구하기

(function(day){
    let lastday = new Date(day.substring(0,4), day.substring(4,6)-1+1, 0);
    return $.datepicker.formatDate('yymmdd', lastday);
})(getStdDate())

날짜 더하기

((new Date()).getFullYear() + 1) + ".12.31"