Question

如果某个日期距离当前日期2周或更短，我正在尝试向div添加一个类。我的逻辑是这样的，但它似乎不起作用。有任何想法吗？它似乎没有正确地进行比较（它将类添加到所有div）并且我无法弄明白。谢谢你的帮助

function dateString () {
    var currentDate = new Date ();
    var twoWeeks = new Date ();
    twoWeeks.setDate(currentDate.getDate() + 14)
    var EndDateDiv = $('.end-date');


    if (currentDate <= twoWeeks) { 
        EndDateDiv.addClass('red');
  }
};

Answer 1

我愿意：

function dateString () {
    var currentDate = new Date();
    var twoWeeks = new Date();
    twoWeeks.setDate(twoWeeks.getDate() + 14);
    var limit = 15;
    var EndDateDiv = $('.end-date');
    var diff = Math.round((twoWeeks-currentDate)/(1000*60*60*24))
    if (diff > limit) { 
        EndDateDiv.addClass('red');
    }
};

工作小提琴==＆gt; https://jsfiddle.net/r1v34aty/

Answer 2

它按预期工作。请参阅以下代码段。

＆＃13;

dateString();
function dateString () {
    var currentDate = new Date ();
    var twoWeeks = new Date ();
    twoWeeks.setDate(currentDate.getDate() + 14)
    var EndDateDiv = $('.end-date');


    if (currentDate <= twoWeeks) { 
        EndDateDiv.addClass('red');
        console.log($('.end-date').attr('class'));
  }
};

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="end-date" />

＆＃13;

Answer 3

function dateString () {
    var currentDate = new Date ();
    var twoWeeks = new Date ();
    alert(twoWeeks);
    var EndDateDiv = $('.end-date');
    if (currentDate.getTime() <= twoWeeks.getTime()+(14*24*60*60)) { 
        EndDateDiv.addClass('red');
    console.log($('.end-date').attr('class'));      }
};

日期比较在jquery中无法正常工作

3 个答案: