我在表单中有四个字段,一些包含初始日期和结束日期(dd / mm / yyyy),其他字段包含开始时间和结束时间(hh:ss)。
我使用这些字段的值来获取带有moment.js的日期和时间,例如:
initialdate = moment( $('input#start_date').val(), 'DD/MM/YYYY' );
start_time = moment( $('input#start_time').val(), 'HH:mm');
enddate = moment( $('input#enddate').val(), 'DD/MM/YYYY' );
end_time = moment( $('input#end_time').val(), 'HH:mm');
然后我打算在两个日期之间获得秒数的差异,连接起始日期和时间以及结束日期和时间。我试图这样做,但无济于事:
start = initialdate + start_time;
end = enddate + end_time;
tracker = moment.duration( end.diff(start) ).asSeconds();
答案 0 :(得分:16)
连接日期和时间字符串并将它们解析为一个,例如
var date = '23/02/2017';
var time = '15:42';
var dateTime = moment(date + ' ' + time, 'DD/MM/YYYY HH:mm');
console.log(dateTime.format('YYYY-MM-DD HH:mm'))

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.js"></script>
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答案 1 :(得分:14)
失败是试图连接值,测试类似的东西:
let initialdate = '2016-10-01';
let start_time = '19:04:10';
let enddate = '2016-10-01';
let end_time = '19:04:20';
let datetimeA = moment(initialdate + " " + start_time);
let datetimeB = moment(enddate + " " + end_time);
console.log(datetimeA.format());
console.log(datetimeB.format());
let datetimeC = datetimeB.diff(datetimeA, 'seconds');
console.log(datetimeC);
答案 2 :(得分:4)
一个更清洁的解决方案IMO将使用片刻的hour
和minute
getter和setter。
let a = moment()
let b = moment().add(3, 'hour').add(37, 'minute') //b is the time portion
a.hour(b.hour()).minute(b.minute())
答案 3 :(得分:2)
[2019]最优雅的解决方案是:
/* "date" and "time" are moment() objects */
date = date.set({
hour: time.get('hour'),
minute: time.get('minute'),
second: 0,
millisecond: 0,
});
答案 4 :(得分:0)
简单使用这个功能
function getCombinedDateObject(date, time) {
let calculatedDateString = '';
if (date && time) {
let utcDate = moment.utc(date);
let utcTime = moment.utc(time);
calculatedDateString = moment(`${utcDate.format('YYYY-MM-DD')} ${utcTime.format("HH:mm:ss z")}`);
}
let finalDateTime = new Date(calculatedDateString);
if (isNaN(finalDateTime.getTime()))
return null;
else
return finalDateTime;
}