jQuery 比较两个javascript字符串日期
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Compare two javascript string dates
提问by David542
How would I compare the following two dates?
我将如何比较以下两个日期？
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) {...}
回答by The Alpha
If this is always in this format (yyyy-mm-dd/2013-01-01) then you can compare as string
如果这始终是这种格式 ( yyyy-mm-dd/2013-01-01)，那么您可以将其作为字符串进行比较
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
ISO 8601 日期格式方案表达了对字典顺序的一个重要利用，该方案将日期表示为 YYYY-MM-DD。这种日期排序有助于对日期进行直接的计算机化排序，因此排序算法不需要将日期字符串的数字部分与非数字字符的字符串区别对待，并且日期将按时间顺序排序。但是请注意，要使其正常工作，年份必须始终为四位数，月份为两位数，日为两位数
But, you can use this to compare dates
但是，您可以使用它来比较日期
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
回答by Rahul Tripathi
You may try like this:
你可以这样尝试：
var d1 = Date.parse("2013-11-01");
var d2 = Date.parse("2013-11-04");
if (d1 < d2)
Also check out Date.parseand Compare dates with JavaScript
回答by Arnaldo Capo
Try using a timestamp.
尝试使用时间戳。
var date1 = +new Date("2013-11-01");
var date2 = +new Date("2013-11-04");
console.log(date1);
console.log(date2);
console.log(date1>date2);
