大家好！今天让小编来大家介绍下关于js 空日期（如何用js实现选一个日期空间比如说5号让它自动跳到1号）的问题，以下是小编对此问题的归纳整理，让我们一起来看看吧。
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本文目录如何用js实现选一个日期空间比如说5号让它自动跳到1号最简单的JS给日期补0js脚本的日期问题如何用js实现选一个日期空间比如说5号让它自动跳到1号《script》oToday=new Date();currentDay=oToday.getDay();if(currentDay==0){currentDay=7}mondayTime=oToday.getTime()-(currentDay-1)*24*60*60*1000;sundayTime=oToday.getTime()+(7-currentDay)*24*60*60*1000;alert("今天是"+oToday.getDate()+"号,星期"+currentDay+"\r");alert("周一是"+new Date(mondayTime).getDate()+"号,周日是"+new Date(sundayTime).getDate()+"号")alert("周一 "+new Date(mondayTime).toLocaleDateString()+"\n周末 "+new Date(sundayTime).toLocaleDateString()+" "+new Date(mondayTime).toLocaleTimeString())《/script》最简单的JS给日期补0适合用在已经有取到没有格式化的数据了 //获取系统当前时间 var nowdate = new Date(); var y = nowdate.getFullYear(); var m = (nowdate.getMonth()+1).toString().padStart(2,’0’); var d = nowdate.getDate().toString().padStart(2,’0’); var currentTime = y+’-’+m+’-’+d; that.date1=currentTime; that.date3=currentTime; //获取系统前一个月的时间 nowdate.setMonth(nowdate.getMonth()-1); var y = nowdate.getFullYear(); var m = (nowdate.getMonth()+1).toString().padStart(2,’0’); var d = nowdate.getDate().toString().padStart(2,’0’); var preMonth = y+’-’+m+’-’+d; that.date=preMonth; that.date2=preMonth; 适用于时间戳转换日期的时候顺便补0 var change = new Date(that.dataList * 1000); var Y = change.getFullYear() + "-"; var M = (change.getMonth() + 1 《 10 ? "0" + (change.getMonth() + 1) : change.getMonth() + 1) + "-"; var D= (change.getDate() 《 10 ? "0" + (change.getDate()) : change.getDate()) + " "; var h= (change.getHours() 《 10 ? "0" + (change.getHours()) : change.getHours()) + ":"; var m= (change.getMinutes() 《 10 ? "0" + (change.getMinutes()) : change.getMinutes()) + ":"; var s= (change.getSeconds() 《 10 ? "0" + (change.getSeconds()) : change.getSeconds()); var newDate = Y + M + D + h + m + s;js脚本的日期问题String.prototype.toDate=function (){var DateStr=this;var converted=Date.parse(DateStr);var myDate=new Date(converted);if(isNaN(myDate)){var arys=DateStr.split(’-’);myDate=new Date(arys);};return myDate;};Date.prototype.DateAdd=function (){var arg=arguments;var me=this;var re="";if(arg.length==0){re=me;}else {if(arg.length==1){re=me;}else {var istype=arg):0;switch(istype){case "d":re=new Date(me.getFullYear(),me.getMonth(),parseInt(me.getDate())+number);break;case "m":re=new Date(me.getFullYear(),parseInt(me.getMonth())+number,parseInt(me.getDate()));break;case "y":re=new Date(parseInt(me.getFullYear())+number,me.getMonth(),me.getDate());break;case "q":re=new Date(me.getFullYear(),parseInt(me.getMonth())+(number*3),me.getDate());break;case "w":re=new Date(me.getFullYear(),me.getMonth(),parseInt(me.getDate())+(number*7));break;case "ss":re=new Date(Date.parse(me)+(1000*number));break;case "n":re=new Date(Date.parse(me)+(60000*number));break;case "h":re=new Date(Date.parse(me)+(3600000*number));break;default:re=me;break;}}};return re;};在js中加上上面的程序试下var startdate = "2011-1-1";//假设这个是你选择的星期一的日期,YYYY-MM-DD格式var enddate = startdate.toDate().DateAdd("d",6);。
本文目录
如何用js实现选一个日期空间比如说5号让它自动跳到1号
《script》oToday=new Date();currentDay=oToday.getDay();if(currentDay==0){currentDay=7}mondayTime=oToday.getTime()-(currentDay-1)*24*60*60*1000;sundayTime=oToday.getTime()+(7-currentDay)*24*60*60*1000;alert("今天是"+oToday.getDate()+"号，星期"+currentDay+"\r");alert("周一是"+new Date(mondayTime).getDate()+"号，周日是"+new Date(sundayTime).getDate()+"号")alert("周一 "+new Date(mondayTime).toLocaleDateString()+"\n周末 "+new Date(sundayTime).toLocaleDateString()+" "+new Date(mondayTime).toLocaleTimeString())《/script》
最简单的JS给日期补0
适合用在已经有取到没有格式化的数据了 //获取系统当前时间 var nowdate = new Date(); var y = nowdate.getFullYear(); var m = (nowdate.getMonth()+1).toString().padStart(2,’0’); var d = nowdate.getDate().toString().padStart(2,’0’); var currentTime = y+’-’+m+’-’+d; that.date1=currentTime; that.date3=currentTime; //获取系统前一个月的时间 nowdate.setMonth(nowdate.getMonth()-1); var y = nowdate.getFullYear(); var m = (nowdate.getMonth()+1).toString().padStart(2,’0’); var d = nowdate.getDate().toString().padStart(2,’0’); var preMonth = y+’-’+m+’-’+d; that.date=preMonth; that.date2=preMonth; 适用于时间戳转换日期的时候顺便补0 var change = new Date(that.dataList * 1000); var Y = change.getFullYear() + "-"; var M = (change.getMonth() + 1 《 10 ? "0" + (change.getMonth() + 1) : change.getMonth() + 1) + "-"; var D= (change.getDate() 《 10 ? "0" + (change.getDate()) : change.getDate()) + " "; var h= (change.getHours() 《 10 ? "0" + (change.getHours()) : change.getHours()) + ":"; var m= (change.getMinutes() 《 10 ? "0" + (change.getMinutes()) : change.getMinutes()) + ":"; var s= (change.getSeconds() 《 10 ? "0" + (change.getSeconds()) : change.getSeconds()); var newDate = Y + M + D + h + m + s;
js脚本的日期问题
String.prototype.toDate=function (){var DateStr=this;var converted=Date.parse(DateStr);var myDate=new Date(converted);if(isNaN(myDate)){var arys=DateStr.split(’-’);myDate=new Date(arys);};return myDate;};Date.prototype.DateAdd=function (){var arg=arguments;var me=this;var re="";if(arg.length==0){re=me;}else {if(arg.length==1){re=me;}else {var istype=arg):0;switch(istype){case "d":re=new Date(me.getFullYear(),me.getMonth(),parseInt(me.getDate())+number);break;case "m":re=new Date(me.getFullYear(),parseInt(me.getMonth())+number,parseInt(me.getDate()));break;case "y":re=new Date(parseInt(me.getFullYear())+number,me.getMonth(),me.getDate());break;case "q":re=new Date(me.getFullYear(),parseInt(me.getMonth())+(number*3),me.getDate());break;case "w":re=new Date(me.getFullYear(),me.getMonth(),parseInt(me.getDate())+(number*7));break;case "ss":re=new Date(Date.parse(me)+(1000*number));break;case "n":re=new Date(Date.parse(me)+(60000*number));break;case "h":re=new Date(Date.parse(me)+(3600000*number));break;default:re=me;break;}}};return re;};在js中加上上面的程序试下var startdate = "2011-1-1";//假设这个是你选择的星期一的日期,YYYY-MM-DD格式var enddate = startdate.toDate().DateAdd("d",6);
以上就是小编对于js 空日期（如何用js实现选一个日期空间比如说5号让它自动跳到1号）问题和相关问题的解答了，js 空日期（如何用js实现选一个日期空间比如说5号让它自动跳到1号）的问题希望对你有用！
