@writ/utils/is-leap-year.js

My tool kit

'use strict'; 
//是否是闰年
export function isLeapYear(iYear){
    if (iYear % 4 == 0 && iYear % 100 != 0) {
        return true;
    } else {
        if (iYear % 400 == 0) {
            return true;
        } else {
            return false;
        }
    }
}