1154-day-of-the-years

DevGod

Elf Vtuber

Caution

DevGod needs to write an editorial for this problem!

js

/**
 * @param {string} date
 * @return {number}
 */
var dayOfYear = function(date) {
    let startDays = Date.parse(date.slice(0,4)+"-01-01") /
    (1000*60*60*24);

    let endDays = Date.parse(date) /
    (1000*60*60*24);

    return (endDays-startDays)+1;
};