大约有 45,000 项符合查询结果(耗时:0.0731秒) [XML]

https://stackoverflow.com/ques... 

Why can't I push to this bare repository?

...e are no commits in "bare". This is a problem with the first commit only, if you create the repos in the order (bare,alice). Try doing: git push --set-upstream origin master This would only be required the first time. Afterwards it should work normally. As Chris Johnsen pointed out, you would...
https://stackoverflow.com/ques... 

How to map atan2() to degrees 0-360

...rtable with this notation, and without the conversion to degrees built in: if(x>0) {radians = x;} else {radians = 2*PI + x;} so we are just adding 2PI to the result if it is less than 0. – David Doria Sep 25 '12 at 19:05 ...
https://stackoverflow.com/ques... 

Should a RESTful 'PUT' operation return something

... The HTTP specification (RFC 2616) has a number of recommendations that are applicable. Here is my interpretation: HTTP status code 200 OK for a successful PUT of an update to an existing resource. No response body needed. (Per Section 9...
https://stackoverflow.com/ques... 

Get value from JToken that may not exist (best practices)

...t the generic method Value() is for. You get exactly the behavior you want if you combine it with nullable value types and the ?? operator: width = jToken.Value<double?>("width") ?? 100; share | ...
https://stackoverflow.com/ques... 

How can I get the line number which threw exception?

... If you need the line number for more than just the formatted stack trace you get from Exception.StackTrace, you can use the StackTrace class: try { throw new Exception(); } catch (Exception ex) { // Get stack trace ...
https://stackoverflow.com/ques... 

php is null or empty?

... What you're looking for is: if($variable === NULL) {...} Note the ===. When use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal. share ...
https://stackoverflow.com/ques... 

Best way to detect that HTML5 is not supported

... was for detection when it's not supported, I recommend using it like so: if (!isCanvasSupported()){ ... share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Converting file size in bytes to human-readable string

...FileSize(bytes, si=false, dp=1) { const thresh = si ? 1000 : 1024; if (Math.abs(bytes) < thresh) { return bytes + ' B'; } const units = si ? ['kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'] : ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']; let u = -1;...
https://stackoverflow.com/ques... 

What is the most elegant way to remove a path from the $PATH variable in Bash?

... this: awk seems to add a null byte to the end of the string. Meaning that if you append another directory to PATH later, it will in fact not be searched. – sschuberth Oct 24 '12 at 20:36 ...
https://stackoverflow.com/ques... 

Why are private fields private to the type, not the instance?

... I think one reason it works this way is because access modifiers work at compile time. As such, determining whether or not a given object is also the current object isn't easy to do. For example, consider this code: public class Foo { private int bar; public void Baz(Foo o...