Home > Web Front-end > JS Tutorial > Commonly used methods for dates in javascript_time and date

Commonly used methods for dates in javascript_time and date

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-05-16 18:42:06
Original
1106 people have browsed it

1: Often involves date conversion comparison:

Copy code The code is as follows:

< html>










2: Date format judgment
Copy code The code is as follows:

//yyyy-MM-dd
if (!/^d{4}-dd?-dd?/.test(datavalue1)) {
alert("The date format of datevalue1 is illegal")
}
3: Convert week (extracted from others)
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util .Date;
public class TestDate {
public static String getWeekFromDate(String sDate,int type){
if("".equals(sDate)){
return "";
}
SimpleDateFormat df = null;
if(type==0){
df = new SimpleDateFormat("yyyy-MM-dd");
}else if(type==1){
df = new SimpleDateFormat("yyyyMMdd");
}
Date date = null;
try{
date = df.parse(sDate);
}catch(ParseException e) {
e.printStackTrace();
}
Calendar cd = Calendar.getInstance();
cd.setTime(date);
int mydate = cd.get(Calendar.DAY_OF_WEEK) ;
String showDate = "";
switch (mydate) { //mydate is 1---7: Sunday, Monday, Tuesday. . .
case 1:
showDate = "Sunday";
break;
case 2:
showDate = "Monday";
break;
case 3:
showDate = "Tuesday";
break;
case 4:
showDate = "Wednesday";
break;
case 5:
showDate = "Thursday";
break ;
case 6:
showDate = "Friday";
break;
default:
showDate = "Saturday";
break;
}
return showDate;
}
}
Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Issues
What are JavaScript hook functions?
From 1970-01-01 08:00:00
0
0
0
What is JavaScript garbage collection?
From 1970-01-01 08:00:00
0
0
0
c++ calls javascript
From 1970-01-01 08:00:00
0
0
0
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template