js中获得当前时间是年份和月份,形如:201208
//获取完整的日期
var date=new Date;
var year=date.getFullYear();
var month=date.getMonth()+1;
month =(month<10 ? "0"+month:month);
var mydate = (year.toString()+month.toString());
注意,year.toString()+month.toString()不能写成year+month。不然如果月份大于等于10,则月份为数字,会和年份相加,如201210,则会变为2022,需要加.toString()
以下是搜到的有用内容:
var myDate = new Date();
myDate.getYear(); //获取当前年份(2位)
myDate.getFullYear(); //获取完整的年份(4位,1970-????)
myDate.getMonth(); //获取当前月份(0-11,0代表1月)
myDate.getDate(); //获取当前日(1-31)
myDate.getDay(); //获取当前星期X(0-6,0代表星期天)
myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours(); //获取当前小时数(0-23)
myDate.getMinutes(); //获取当前分钟数(0-59)
myDate.getSeconds(); //获取当前秒数(0-59)
myDate.getMilliseconds(); //获取当前毫秒数(0-999)
myDate.toLocaleDateString(); //获取当前日期
var mytime=myDate.toLocaleTimeString(); //获取当前时间
myDate.toLocaleString( ); //获取日期与时间
{
text:'今天',
value(){
const end = new Date();
const start = new Date();
return [start, end];
}
},
{
text:'本周',
value(){
// const end = new Date();
// const start = new Date();
// start.setTime(start.getTime() - 3600 * 1000 * 24 * 7);
// return [start, end];
var Nowdate=new Date();
var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);
var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);
var WeekLastDay=new Date((WeekFirstDay/1000+6*86400)*1000);
console.log(WeekLastDay,WeekFirstDay);
return[WeekFirstDay,WeekLastDay];
}
},
{
text:'本月',
value(){
// const end = new Date();
// const start = new Date();
// start.setTime(start.getTime() - 3600 * 1000 * 24 * 30);
// return [start, end];
var Nowdate=new Date();
var MonthFirstDay=new Date(Nowdate.getFullYear(),Nowdate.getMonth(),1);
var MonthNextFirstDay=new Date(Nowdate.getFullYear(),Nowdate.getMonth()+1,1);
var MonthLastDay=new Date(MonthNextFirstDay-86400000);
// console.log(MonthFirstDay,MonthLastDay);
return [MonthFirstDay, MonthLastDay];
}
},
{
text:'本年',
value(){
// const end = new Date();
// const start = new Date();
// start.setTime(start.getTime() - 3600 * 1000 * 24 * 365);
// return [start, end];
var Nowdate=new Date();
var YearFirstDay=new Date(Nowdate.getFullYear(),0);
var YearLastDay=new Date(Nowdate.getFullYear(),11,31);
// console.log(YearFirstDay,YearLastDay)
return [YearFirstDay,YearLastDay];
}