使用正则表达式，Javascript中还有其他方法可以从具有时区的字符串中提取日期
[英]Using regular expression, is there any other way in Javascript to extract date from string having time zone
问题描述
I'm using regular expression to extract date and time information from a given string. 
我正在使用正则表达式从给定的字符串中提取日期和时间信息。
2006-08-15T00:00:00+05:30
I'm new to regular expression and the way I'm doing it is as follows: 我是正则表达式的新手，其执行方式如下：
(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})
I know that there may be some better way to do this. 我知道可能会有更好的方法来做到这一点。 So, please if anybody has any knowledge on this topic please share and explain. 因此，如果有人对此主题有任何了解，请分享和解释。 PS: I also want to extract the time zone information. PS：我也想提取时区信息。
4 个解决方案
解决方案1
3 2016-11-11 06:40:49
If you want a non-regex solution, you can use this : 如果您需要非正则表达式解决方案，则可以使用以下方法：
> new Date(Date.parse("2005-07-08T11:22:33+0000"))
Fri Jul 08 2005 13:22:33 GMT+0200 (CEST)
> new Date(Date.parse("2005-07-08T11:22:33+0000")).toUTCString()
"Fri, 08 Jul 2005 11:22:33 GMT"
And to get the timezone, you can use the getTimezoneOffset() function 要获取时区，可以使用getTimezoneOffset()函数
var my_date = new Date(Date.parse("2005-07-08T11:22:33+0000"));
var timezone_offset = my_date.getTimezoneOffset();
The time-zone offset is the difference, in minutes, between UTC and local time.
解决方案2
0 2016-11-11 06:40:38
yes you can do using split method . 是的，您可以使用split方法。
<!DOCTYPE html> <html> <body> <p>Click the button to display the array values after the split.</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { var str = "2006-08-15T00:00:00+05:30"; var res = str.split("T"); console.log("date:" +res[0]); console.log("time:" +res[1]); } </script> </body> </html>
解决方案3
0 2016-11-11 06:41:17
If you used Date() function, Then you can create Date Object to get all data without regular expression that you want. 如果使用Date()函数，则可以创建Date Object以获取所有数据，而无需所需的regular expression 。
Example 例
var Obj = new Date();
var month = Obj.getMonth();
var date = Obj.getDate();
var year = Obj.getFullYear();
var hour = Obj.getUTCHours();
var minutes = Obj.getUTCMinutes();
Here is the all Date Object Methods 这是所有Date对象的方法
解决方案4
0 2016-11-11 06:47:19
You could split the string an then you get an array, with the information: 您可以将字符串拆分，然后获得一个数组，其中包含以下信息：
date.split(/[-\+:T]/g);
// ["2006", "08", "15", "00", "00", "00", "05", "30"]
Also, you should check if the string contains a + or a - before using the timezone. 另外，在使用时区之前，您应该检查字符串是否包含+或-。
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