Summary of time processing in JavaScript_javascript skills

No more nonsense, I mainly summarize the knowledge related to time processing through the following seven aspects.

1. Get the current time

function getNowTime() {
return new Date();
}

2. Add time and days

function getTimeAddDays(time, days) {
return new Date(time.getTime() + days * 24 * 60 * 60 * 1000);
}

3. Get and format the date: year-month-day

function getFormatDate(time) {
return time.getFullYear() + "-" + (time.getMonth() + 1) + "-" + time.getDate();
}

4. Convert string to date, string format: 2011-11-20

function convertToDate(strings) {
return new Date(Date.parse(strings.replace("-", "/")));
}

5. Get and format the day of the week

var WEEKDAYS = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"]; //星期
function getFormatWeek(time) {
return WEEKDAYS[time.getDay()];
}

6. Time comparison

function compareTime(time1, time2) {
return time1.getTime() - time2.getTime();
}

7. Calculate the number of days between two dates

function getDays(time1, tiem2){
var day = 24*60*60*1000;
return (time1.getTime() - time2.getTime())/day;
}

The editor has summarized seven aspects of knowledge about time processing in js. I hope it will be helpful to you!