Question

我试图以数字格式获取jQuery中的日期和时间，例如，

yyyyMMddhhmm或者你可以说201404051159

这就是我想要的，

$(document).ready(function () {
    var currentdate = new Date();
    var datetime = currentdate.getDate() + ""
                + currentdate.getHours() + ""
                + currentdate.getMinutes();

    alert(datetime);
});

http://jsfiddle.net/YN2Xs/2/

它没有给我正确的约会

Answer 1

这里有两个问题。

首先，您在没有先声明的情况下使用currentdate变量。通过添加var currentdate = new Date();

，这很容易解决

其次，Date对象上的getter方法不返回前导零。这意味着您需要获取该值并检查它是否小于9.如果是，则需要添加前导零。

类似的东西：

$(document).ready(function () {
  var currentdate=new Date() // Declare date variable 
  var datetime = "" + currentdate.getFullYear();
  var month = currentdate.getMonth() + 1; // Month is 0-11, not 1-12
  if (month < 10) {
    month = '0' + month;
  }
  datetime += month;
  var day = currentdate.getDate();
  if (day < 10) {
    day = '0' + day;
  }
  datetime += day;
  var hours = currentdate.getHours();
  if (hours < 10) {
    hours = '0' + hours;
  }
  datetime += hours;
  var minutes = currentdate.getMinutes();
  if (minutes < 10) {
    minutes = '0' + minutes;
  }
  datetime += minutes;
  var seconds = currentdate.getSeconds();
  if (seconds < 10) {
    seconds = '0' + seconds;
  }
  datetime += seconds;

  alert(datetime);
});

Answer 2

您错过了声明日期变量

试试这个

$(document).ready(function () {
        var currentdate=new Date() // Declare date variable 
        var datetime = currentdate.getDate() + ""
                    + currentdate.getHours() + ""
                    + currentdate.getMinutes() + ""
                    + currentdate.getSeconds();

        alert(datetime);
    });

DEMO

Answer 3

您忘记声明日期对象以访问日期

 var date=new Date();
    var datetime = date.getDate() + ""
                + date.getHours() + ""
                + date.getMinutes() + ""
                + date.getSeconds();

找到小提琴链接：

http://jsfiddle.net/ShinyMetilda/7pHj3/1/

Answer 4

试试这样：

$(document).ready(function () {
    var currentdate = new Date();
    var datetime = currentdate.getFullYear()
                + currentdate.getMonth() 
                + currentdate.getDate()
                + currentdate.getHours()
                + currentdate.getMinutes()

    alert(datetime);
});

Answer 5

你可以这样分解

DEMO1 http://jsfiddle.net/YN2Xs/5/

OUTPUT1 20143593653

DEMO2 http://jsfiddle.net/YN2Xs/7/（带零的2位数）

OUTPUT2 2014030595829

EXAMPLE1

$(document).ready(function () {
        var currentdate=new Date()
        var datetime = 
                    + currentdate.getFullYear() + ""
                    + currentdate.getMonth() + ""        
                    + currentdate.getDate() + ""
                    + currentdate.getHours() + ""
                    + currentdate.getMinutes() + ""
                    + currentdate.getSeconds();

    });

示例2，每天2位数添加0所需

 $(document).ready(function () {
        var currentdate=new Date();
        var month = currentdate.getMonth();
        var day = currentdate.getDate();
        if(month < 10){ month = '0' + month}
        if(day < 10){ day = '0' + day}

        var datetime = 
                    + currentdate.getFullYear() + ""
                    + month + ""        
                    + day + ""
                    + currentdate.getHours() + ""
                    + currentdate.getMinutes() + ""
                    + currentdate.getSeconds();

        $('input').val(datetime);

    });

EDITED

getFullYear()已取代getYear()

没有在jQuery中获得正确的日期格式

5 个答案: