Javascript Date string constructing wrong date
This question already has an answer here:
When you pass dates as a string, the implementation is browser specific. Most browsers interpret the dashes to mean that the time is in UTC. If you have a negative offset from UTC (which you do), it will appear on the previous local day.
If you want local dates, then try using slashes instead, like this:
var date = new Date('2006/05/17');
Of course, if you don't have to parse from a string, you can pass individual numeric parameters instead, just be aware that months are zero-based when passed numerically.
var date = new Date(2006,4,17);
However, if you have strings, and you want consistency in how those strings are parsed into dates, then use moment.js.
var m = moment('2006-05-17','YYYY-MM-DD');
m.format(); // or any of the other output functions
从“05”删除前置零
What actually happens is that the parser is interpreting your dashes as the START of an ISO-8601 string in the format "YYYY-MM-DDTHH:mm:ss.sssZ", which is in UTC time by default (hence the trailing 'Z').
You can produce such dates by using the "toISOString()" date function as well. http://www.w3schools.com/jsref/jsref_toisostring.asp
In Chrome (doesn't work in IE 10-) if you add " 00:00" or " 00:00:00" to your date (no 'T'), then it wouldn't be UTC anymore, regardless of the dashes. ;)
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