Question

我有一个要求，我需要找到在文本字段中输入的日期不应超过当前日期的1年。我已经为前一个编码，但对于后一个要求我不能这样做。

   function validateNetworthDate() {

        var netWorthFlag = $("#NetworthDate").val();
        //netWorthFlag is coming( the date we entered) : "15/01/2015"

         var errorMsg='';

        var currentTime = new Date();
        var currentDay = currentTime.getDate();
        var currentMonth = currentTime.getMonth()+1; //As January is 0!
        var currentYear = currentTime.getFullYear();
        if(currentDay<10) {
            currentDay='0'+currentDay
        } 
        if(currentMonth<10) {
            currentMonth='0'+currentMonth
        } 


        var enteredDay=netWorthFlag.substr(0,2);
        var enteredMonth=netWorthFlag.substr(3,2);
        var enteredYear=netWorthFlag.substr(6,4);

        var enteredDateFormat=enteredYear+'/'+enteredMonth+'/'+enteredDay;

       //Now entered date should be : "2015/01/15"


        var enDate = new Date(enteredDateFormat);
        var compDate = currentTime - enDate;
        if (compDate<0)
        {
            errorMsg="Future Date not allowed.";
        }
        //Can you please suggest that what should I write here to do validation that Date should not be older than 1 year from current date (Today's date) 
    }

Answer 1

尝试这个，在从输入中获取字符串后，可以将函数调用为，

function dateDiff(entereddate) {
  one_year_next_date = new Date(new Date().setYear(new Date().getFullYear() + 1))
  entereddate = new Date(entereddate);
  return (one_year_next_date.getTime() - entereddate.getTime()) / 1000 / 60 / 60 / 24 // diff in days
}

var netWorthFlag = $("#NetworthDate").val();

date_difference = dateDiff(netWorthFlag); /* your input entered date */
/* eg: dateDiff("02/16/2015");  */(check date format ("02/16/2015"))

这会将日期差异作为天数返回。

然后你可以写下你的病情，

if(date_difference > 365(/* 366 */))
  /**** You can even check the leap year of entered date, or next years date ****/
  {
    /**** do your stuff ****/
  } 
else
  {
    /**** do your stuff ****/
  }

你甚至可以在这里检查闰年，从该日期算起一年。（检查日期格式（“02/16/2015”））

Answer 2

在这里查看：

https://jsfiddle.net/v63u7ksf/

    var yearAgoTime = new Date().setFullYear(currentTime.getFullYear()-1);


    var compDate2 = enDate - yearAgoTime;
    if (compDate2<0)
    {
        errorMsg="More than 1 year ago not allowed.";
    }

Answer 3

您可以按照其他人的建议自行检查差异，但是，我建议您使用moment.js进行日期时间处理。非常方便。

javascript中的日期不应超过当前日期（今天的日期）的1年

3 个答案: