大约有 25,400 项符合查询结果(耗时:0.0520秒) [XML]

https://stackoverflow.com/ques... 

Difference between \b and \B in regex

I am reading a book on regular expression and I came across this example for \b : 9 Answers ...
https://stackoverflow.com/ques... 

How to check that an object is empty in PHP?

... The typecasting doesn't work for me, because I get the error: PHP Parse error: syntax error, unexpected '(array)' (array) (T_ARRAY_CAST) in ... I use PHP version 5.4.28 and the first option with two lines of code works for me. – C...
https://stackoverflow.com/ques... 

What is the maximum length of a valid email address?

...defined as Path = "<" [ A-d-l ":" ] Mailbox ">" So the Mailbox element (i.e., the email address) has angle brackets around it to form a Path, which a maximum length of 254 characters to restrict the Path length to 256 characters or fewer. The maximum length specified in RFC 5321 states: ...
https://stackoverflow.com/ques... 

How to get POSTed JSON in Flask?

...'m trying to build a simple API using Flask, in which I now want to read some POSTed JSON. I do the POST with the Postman Chrome extension, and the JSON I POST is simply {"text":"lalala"} . I try to read the JSON using the following method: ...
https://stackoverflow.com/ques... 

How do I select a merge strategy for a git rebase?

git-rebase man page mentions -X<option> can be passed to git-merge . When/how exactly? 3 Answers ...
https://stackoverflow.com/ques... 

How can I unit test a GUI?

...lly I've had mixed experiences with trying to move logic out of the UI - sometimes it's worked very well, and at other times it's been more trouble than it's worth. It's somewhat outside my area of expertise though. share ...
https://stackoverflow.com/ques... 

Calculating text width

...te text width using jQuery. I'm not sure what, but I am definitely doing something wrong. 22 Answers ...
https://stackoverflow.com/ques... 

How do I assert my exception message with JUnit Test annotation?

I have written a few JUnit tests with @Test annotation. If my test method throws a checked exception and if I want to assert the message along with the exception, is there a way to do so with JUnit @Test annotation? AFAIK, JUnit 4.7 doesn't provide this feature but does any future versions provi...
https://stackoverflow.com/ques... 

How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]

Can someone tell me how to detect if "specialword" appears in an array? Example: 5 Answers ...
https://stackoverflow.com/ques... 

How can I extract audio from video with ffmpeg?

...dec copy output-audio.aac -vn is no video. -acodec copy says use the same audio stream that's already in there. Read the output to see what codec it is, to set the right filename extension. share | ...