javascript 日期时间格式正则表达式YYYY/MM/DD hh:mm:ss
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DateTime format Regular expression YYYY/MM/DD hh:mm:ss
提问by user1629434
Can someone write a regular expression to test this date format 2012/11/14 14:28:12?
有人可以写一个正则表达式来测试这种日期格式2012/11/14 14:28:12吗？
I already have a regular expression for the date part:
我已经有了日期部分的正则表达式：
/^\d{4}\/\d{2}\/\d{2}$/
How can I add to this to test for the presence of a time?
我如何添加到这个来测试时间的存在？
回答by David Hellsing
I‘d use the Dateconstructor instead to test a date in that format:
我会使用Date构造函数来测试该格式的日期：
var isValid = !!new Date('2012/11/14 14:28:12').getTime();
Demo: http://jsfiddle.net/rwCeA/
演示：http: //jsfiddle.net/rwCeA/
Works in all my test browsers (safari/chrome/firefox/ie7+). The Date constructor takes many date variants, but you can combine this with a regexp to force a certain format.
适用于我所有的测试浏览器（safari/chrome/firefox/ie7+）。Date 构造函数采用许多日期变体，但您可以将其与正则表达式结合使用以强制使用某种格式。
回答by HBP
This fiddle http://jsfiddle.net/jstoolsmith/Db3JM/I wrote recently is a more sophisticated piece of code, the relevant regular expression is :
我最近写的这个小提琴http://jsfiddle.net/jstoolsmith/Db3JM/是一段更复杂的代码，相关的正则表达式是：
/(?:(\d{4})([\-\/.])([0-3]?\d)([0-3]?\d)|([0-3]?\d)([\-\/.])([0-3]?\d)(\d{4}))(?:\s+([012]?\d)([:hap])([0-5]\d))?/i
