日期js

最新推荐文章于 2021-04-13 14:19:00 发布

Mrf_w

最新推荐文章于 2021-04-13 14:19:00 发布

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分类专栏：页面创建时间文章标签：日期

本文链接：https://blog.youkuaiyun.com/Mrf_w/article/details/80839047

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本文提供了一组实用的JavaScript函数，用于获取当前日期、未来及过去特定时间点的日期。通过这些函数，开发者可以轻松地进行日期加减运算，并格式化输出结果。

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//获取当前日期
function date() {
   var date = new Date();
   var year = date.getYear();
   var month = parseInt(date.getMonth(), 10)+1;
   var day = parseInt(date.getDate(), 10);
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取下个月日期
function dateNextOneMonth() {
   var date = new Date();
   var year = date.getYear();
   var month = parseInt(date.getMonth(), 10) + 2;
   var day = parseInt(date.getDate(), 10);
   if(month > 12) {
        year = year + 1;
        month = month - 12;
    }
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取后3个月日期
function dateAfterThreeMonth() {
   var date = new Date();
   var year = date.getYear();
   var month = parseInt(date.getMonth(), 10) + 4;
   var day = parseInt(date.getDate(), 10);
   if(month > 12) {
        year = year + 1;
        month = month - 12;
    }
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取后6个月日期
function dateAftersixMonth() {
   var date = new Date();
   var year = date.getYear();
   var month = parseInt(date.getMonth(), 10) + 7;
   var day = parseInt(date.getDate(), 10);
   if(month > 12) {
        year = year + 1;
        month = month - 12;
    }
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取下一年日期
function dateAfterOneYear() {
   var date = new Date();
   var year = parseInt(date.getYear(), 10) + 1;
   var month = parseInt(date.getMonth(), 10) + 1;
   var day = parseInt(date.getDate(), 10);
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取下两年日期
function dateAfterTwoYears() {
   var date = new Date();
   var year = parseInt(date.getYear(), 10) + 2;
   var month = parseInt(date.getMonth(), 10) + 1;
   var day = parseInt(date.getDate(), 10);
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取下三年日期
function dateAfterThreeYears() {
   var date = new Date();
   var year = parseInt(date.getYear(), 10) + 3;
   var month = parseInt(date.getMonth(), 10) + 1;
   var day = parseInt(date.getDate(), 10);
   if(month < 10) {
       month = "0" + month;
    }
    if(day < 10) {
       day = "0" + day;
    }
   return year + "-" + month + "-" + day;
}
//获取上个月日期
function dateBeforeOneMounth() {
   var date = new Date();
   var year = date.getYear();
   var month = parseInt(date.getMonth());
   var day = parseInt(date.getDate());
   if(day < 10) {
       day = "0" + day;
    }
   if(month == 0){
       year = year-1;
       return year+"-12-"+day ;
   }
   if(month < 10) {
       month = "0" + month;
    }

   return year+"-"+month+"-"+day;
}