moment.js 连接日期和时间 [英] moment.js concatenate date and time

问题描述

我在一个表单中有四个字段，一些包含初始日期和结束日期 (dd/mm/yyyy)，其他包含开始时间和结束时间 (hh: ss).

I have four fields in a form, some containing an initial date and the end date (dd / mm / yyyy) and the others contain the start time and the end time (hh: ss).

我用来通过moment.js获取日期和时间的这些字段的值，例如:

The value of these fields I use to get the date and time with moment.js such as this:

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');

我打算然后获得两个日期之间的秒差，连接开始日期和时间以及结束日期和时间.我曾尝试这样做，但无济于事:

What I intend is to then get the difference in seconds between the two dates, concatenating the starting date and time and the ending date and time. I have tried to do this, but to no avail:

start = initialdate + start_time;
end = enddate + end_time;
tracker = moment.duration( end.diff(start) ).asSeconds();

推荐答案

失败是尝试连接值，测试如下:

The fail is trying on concatenate the values, test with something like this:

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);

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