我试图使用momentjs来检查给定的日期是今天还是将来。
这是我目前所拥有的:
<script type="text/javascript" src="http://momentjs.com/downloads/moment.min.js"></script>
<script type="text/javascript">
var SpecialToDate = '31/01/2014'; // DD/MM/YYYY
var SpecialTo = moment(SpecialToDate, "DD/MM/YYYY");
if (moment().diff(SpecialTo) > 0) {
alert('date is today or in future');
} else {
alert('date is in the past');
}
</script>
代码评估我的日期(2014年1月31日)作为过去的日期。
知道我哪里做错了吗?
当前回答
最简单的答案是:
const firstDate = moment('2020/10/14'); // the date to be checked
const secondDate = moment('2020/10/15'); // the date to be checked
firstDate.startOf('day').diff(secondDate.startOf('day'), 'days'); // result = -1
secondDate.startOf('day').diff(firstDate.startOf('day'), 'days'); // result = 1
它将检查midnight值并返回准确的结果。当两个日期之间的时间差小于24小时时，它也会工作。
其他回答
invert is before方法检查日期是否与今天或未来相同，如下所示:
!moment(yourDate).isBefore(moment(), "day");
在阅读文档:http://momentjs.com/docs/#/displaying/difference/之后，您必须将diff函数视为减号运算符。
// today < future (31/01/2014)
today.diff(future) // today - future < 0
future.diff(today) // future - today > 0
因此，你必须扭转你的状况。
如果你想检查是否一切正常，你可以在函数中添加一个额外的参数:
moment().diff(SpecialTo, 'days') // -8 (days)
用最简单的一个来检查未来的日期
if(moment().diff(yourDate) >= 0)
alert ("Past or current date");
else
alert("It is a future date");
如果firstDate相同或在(future) secondDate之后返回true否则返回false。Toda是firstDate = new Date();
static isFirstDateSameOrAfterSecondDate(firstDate: Date, secondDate: Date): boolean {
var date1 = moment(firstDate);
var date2 = moment(secondDate);
if(date1 && date2){
return date1.isSameOrBefore(date2,'day');
}
return false;
}
有isSame, isBefore和isAfter为日比较时刻的例子;
static isFirstDateSameSecondDate(firstDate: Date, secondDate: Date): boolean {
var date1 = moment(firstDate);
var date2 = moment(secondDate);
if (date1 && date2) {
return date1.isSame(date2,'day');
}
return false;
}
static isFirstDateAfterSecondDate(firstDate: Date, secondDate: Date): boolean {
var date1 = moment(firstDate);
var date2 = moment(secondDate);
if(date1 && date2){
return date1.isAfter(date2,'day');
}
return false;
}
static isFirstDateBeforeSecondDate(firstDate: Date, secondDate: Date): boolean {
var date1 = moment(firstDate);
var date2 = moment(secondDate);
if(date1 && date2){
return date1.isBefore(date2,'day');
}
return false;
}
选择yesterday，在moment()的帮助下检查过去的天数。减去(1天);
Reference:- http://momentjs.com/docs/#/manipulating/subtract/ function myFunction() { var yesterday = moment().subtract(1, "day").format("YYYY-MM-DD"); var SpecialToDate = document.getElementById("theDate").value; if (moment(SpecialToDate, "YYYY-MM-DD", true).isAfter(yesterday)) { alert("date is today or in future"); console.log("date is today or in future"); } else { alert("date is in the past"); console.log("date is in the past"); } } <script src="http://momentjs.com/downloads/moment.js"></script> <input type="date" id="theDate" onchange="myFunction()">
