Question

139

moment.js concatenate date and time

rated 0 times [ 143] [ 4] / answers: 1 / hits: 66124 / 7 Years ago, wed, february 22, 2017, 12:00:00

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).

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');

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();

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tylerdamiena

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answered 7 Years ago gideonb · Accepted Answer

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);