How would I compare the following two dates?
var start_date = $('#start_date').text();
var end_date = $('#end_date').text();
alert(start_date + ' ' + end_date); // '2013-01-01 2013-01-02'
# how to do the following?
if (start_date > end_date) {...}
3 Answers
If this is always in this format (yyyy-mm-dd/2013-01-01) then you can compare as string
var d1 = '2013-11-01', d2 = '2013-11-02';
console.log(d1 < d2); // true
//console.log(d1.getFullYear()); won't work, not date object
An important exploitation of lexicographical ordering is expressed in the ISO 8601 date formatting scheme, which expresses a date as YYYY-MM-DD. This date ordering lends itself to straightforward computerized sorting of dates such that the sorting algorithm does not need to treat the numeric parts of the date string any differently from a string of non-numeric characters, and the dates will be sorted into chronological order. Note, however, that for this to work, there must always be four digits for the year, two for the month, and two for the day
But, you can use this to compare dates
var d1 = new Date("11-01-2013");
var d2 = new Date("11-04-2013");
console.log(d1);
console.log(d1.getMonth()); // 10 (0-11)
console.log(d1.getFullYear()); // 2013
console.log(d1.getDate()); // 1
console.log(d1 < d2); // true
Comments
You may try like this:
var d1 = Date.parse("2013-11-01");
var d2 = Date.parse("2013-11-04");
if (d1 < d2)
Also check out Date.parse and Compare dates with JavaScript
Comments
Try using a timestamp.
var date1 = +new Date("2013-11-01");
var date2 = +new Date("2013-11-04");
console.log(date1);
console.log(date2);
console.log(date1>date2);
Dateobjects. right now they're strings, and will be compared using string rules.