大约有 44,000 项符合查询结果(耗时:0.0346秒) [XML]

https://stackoverflow.com/ques... 

How do I deep copy a DateTime object?

Now $date1 and $date2 contain the same date -- three years from now. I'd like to create two separate datetimes, one which is parsed from a string and one with three years added to it. Currently I've hacked it up like this: ...
https://stackoverflow.com/ques... 

How to check for an active Internet connection on iOS or macOS?

... Use of www.appleiphonecell.com is now (2018) a bad choice. It now redirects to Apple.com which is a > 40kB html file. Back to google.com - it is only 11kB. BTW google.com/m is same size but is reported to be slower by 120 msec. – Blu...
https://stackoverflow.com/ques... 

Convert to/from DateTime and Time in Ruby

...ew_offset, :gm) end def to_local_time to_time(new_offset(DateTime.now.offset-offset), :local) end private def to_time(dest, method) #Convert a fraction of a day to a number of microseconds usec = (dest.sec_fraction * 60 * 60 * 24 * (10**6)).to_i Time.send(method, dest.yea...
https://stackoverflow.com/ques... 

Javascript objects: get parent [duplicate]

... No. There is no way of knowing which object it came from. s and obj.subObj both simply have references to the same object. You could also do: var obj = { subObj: {foo: 'hello world'} }; var obj2 = {}; obj2.subObj = obj.subObj; var s = obj.subObj;...
https://stackoverflow.com/ques... 

Error: Could not find or load main class in intelliJ IDE

...and then followed the steps mentioned by @Kishore over here. It is working now. – Sunny Shekhar Nov 26 '19 at 5:14  |  show 2 more comments ...
https://stackoverflow.com/ques... 

What exactly does Perl's “bless” do?

...h a class. package MyClass; my $object = { }; bless $object, "MyClass"; Now when you invoke a method on $object, Perl know which package to search for the method. If the second argument is omitted, as in your example, the current package/class is used. For the sake of clarity, your example migh...
https://stackoverflow.com/ques... 

Hosting a Maven repository on github

...> </configuration> </plugin> </plugins> Now try running mvn clean deploy. You'll see that it deployed your maven repository to target/mvn-repo. The next step is to get it to upload that directory to GitHub. Add your authentication information to ~/.m2/settings.x...
https://stackoverflow.com/ques... 

Is APC compatible with PHP 5.4 or PHP 5.5?

...ed back any issues encountered to ensure a stable final release. I do not know what this means for the future of APC. APC FOR PHP 5.4+ IS STILL FLAGGED AS BETA This means the developers do not consider it completely stable. While many people are experiencing no problems at all with the current SVN r...
https://stackoverflow.com/ques... 

Changing the background drawable of the searchview widget

...mply make one local copy and use it in selector drawable for both themes. Now, you'll need to edit downloaded nine-patches to your need (i.e. changing blue color to red one). You can take a look at file using draw 9-patch tool to check if it is correctly defined after your edit. I've edited files ...
https://stackoverflow.com/ques... 

How do I expire a PHP session after 30 minutes?

...of the last activity of the user but update that value with every request. Now if the difference of that time to the current time is larger that 1800 seconds, the session has not been used for more than 30 minutes. – Gumbo Aug 9 '10 at 16:37 ...