js的date对象常用实例

const now = new Date();
console.log(now); // 输出类似：Wed Sep 06 2023 14:23:45 GMT+0800 (中国标准时间)

const year = now.getFullYear();
console.log(year); // 输出年份，例如：2023

const month = now.getMonth();
console.log(month); // 输出 0 - 11

const date = now.getDate();
console.log(date); // 输出 1 - 31

const hours = now.getHours();
console.log(hours); // 输出 0 - 23

const minutes = now.getMinutes();
console.log(minutes); // 输出 0 - 59

const seconds = now.getSeconds();
console.log(seconds); // 输出 0 - 59

const formattedDate = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()} ${now.getHours()}:${now.getMinutes()}:${now.getSeconds()}`;
console.log(formattedDate); // 输出类似：2023-9-6 14:23:45

const specificDate = new Date('2023-10-01');
console.log(specificDate);

const date1 = new Date('2023-09-01');
const date2 = new Date('2023-10-01');
if (date1.getTime() < date2.getTime()) {
    console.log('date1 在 date2 之前');
} else {
    console.log('date1 在 date2 之后');
}