Question

我有一个不同日期的数组，格式为年 - 月 - 日。

类似的东西：

var dates = ["2016-08-01", "2016-08-09", "2016-08-10", ....];

我还有一个函数，它以与上面相同的格式格式化今天的日期。并存储在变量中：

var currentDate; //Contains current date in the format of year-month-day

我需要做的是检查数组中是否有任何日期：

与今天的日期相符.-例如今天是2016-08-13
从今天起至今日14天。 - 例如从今天（2016-08-13）起14天后将是2016-07-30
或与当前和14天之间的任何日期相匹配。

我试图通过遍历数组，检查每个值来做到这一点。但我不确定if条件/条件

    for(var i = 0; i < dates.length; i++) {
      if(currentDate === *condition*) {
        sendDate(dates[i]);
      } 
    }

任何人都有一个很好的解决方案吗？提前谢谢！

Answer 1

一种方法是将日期解析为毫秒值并进行比较。

var todayParts = currentDate.split('-');
var today = new Date(todayParts[0], todayParts[1], todayParts[2]).getTime();
var otherParts = dates[i].split('-');
var other = new Date(otherParts[0], otherParts[1], otherParts[2]).getTime();

if (today < other + 1209600000 /* 2 weeks in milliseconds */) {
    // The other date is less than 2 weeks before today
}

您可以阅读here为什么我手动解析它而不是使用Date.parse()。

Answer 2

首先，从currentDate创建一个新的Date（）（currentDate是字符串格式Y-d-m，小时和分钟是00:00）

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只需遍历你的日期数组

var current = new Date(currentDate);
var matchWithCurrent = [];
var matchWithDayBack = [];
var between = [];

如果您只希望一个阵列与3个条件匹配，只需在一个for (var i=0; i<dates.length; i++) { var tmpDate = new Date(dates[i]); //Convert string to date var diff = Math.ceil((current - tmpDate) / (1000 * 3600 * 24)); //get time difference (current - tmpDate is milisecond, we need convert it to day) // Check condition and push it on array correct if (diff == 0) { matchWithCurrent.push(dates[i]); } if (diff == 14) { matchWithDayBack.push(dates[i]); } if ((diff > 0) && (diff <14)) { between.push(dates[i]); } } console.log(matchWithCurrent); console.log(matchWithDayBack); console.log(between);中检查3个条件并将其推入if

Answer 3

You can compare two dates something like that:
var currentDate = new Date();
 for(var i = 0; i < dates.length; i++) {<br>
 var arrDate = new Date(dates[i]);
    if(currentDate == arrDate)
    {//compare array dates with current date
        //your code here
    }
 var beforeDate = (currentDate.getDate() - 14); //14 days before
    if(arrDate >= beforeDate && arrDate <= currentDate){
        //compare dates between current date and 14 days before date
    } 
  }

检查日期是否在两个日期之间

3 个答案: