使用 toLocaleString 将日期格式设置为 MM/DD/YYYY

Question

在 JS 中，如何将日期格式化为 MM/DD/YYYY？new Date(Date.now() + (8 * 86400000)).toLocaleString().split(',')[0])returns "12/1/2020"如何将其格式化为“12/01/2020”？fromDate:(new Date(Date.now() + (1 * 86400000)).toLocaleString().split(',')[0]),toDate:(newDate(Date.now() + (8 * 86400000)).toLocaleString().split(',')[0])我希望 fromDate 和 toDate 为：如果在 MST 下午 5:00 和午夜之间：设置fromDate为tomorrow'sdate ，并toDate设置为tomorrow's date + 7 days如何比较 currentTime 是否大于当地时间下午 5 点？let currentTime = new Date().toLocaleTimeString('en-US', {  hour: '2-digit',  minute: '2-digit',  second: '2-digit',  hour12: false});  

Answer 1

您可以使用options参数.toLocaleString将日期格式设置为“MM/DD/YYYY”

var currentDate = new Date(Date.now() + (8 * 86400000))

var newDateOptions = {

        year: "numeric",

        month: "2-digit",

        day: "2-digit"

}

var newDate = currentDate.toLocaleString("en-US", newDateOptions );

console.log(newDate)

有关如何使用参数的详细帖子.toLocaleString- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString

Answer 2

var currentD = new Date();

var startHappyHourD = new Date();

startHappyHourD.setHours(17,30,0); // 5.30 pm

var endHappyHourD = new Date();

endHappyHourD.setHours(18,30,0); // 6.30 pm

console.log("happy hour?")

if(currentD >= startHappyHourD && currentD < endHappyHourD ){

    console.log("yes!");

}else{

    console.log("no, sorry! between 5.30pm and 6.30pm");

}