大约有 47,000 项符合查询结果(耗时:0.0381秒) [XML]

https://stackoverflow.com/ques... 

Should CSS always preceed Javascript?

...lt;title>CSS first</title> <script>var start = Date.now();</script> <link rel="stylesheet" href="style.css"> <script src="jquery.js"></script> <script src="test.js"></script> </head> <body> ...
https://stackoverflow.com/ques... 

How can I test https connections with Django as easily as I can non-https connections using 'runserv

...req -new -x509 -nodes -sha1 -days 365 -key stunnel.key > stunnel.cert Now combine these into a single file that stunnel will use for its SSL communication: cat stunnel.key stunnel.cert > stunnel.pem Create a config file for stunnel called dev_https with the following contents: pid= cert...
https://stackoverflow.com/ques... 

How to play an android notification sound

...play a notification sound without playing it over the media stream. Right now I can do this via the media player, however I don't want it to play as a media file, I want it to play as a notification or alert or ringtone. heres an example of what my code looks like right now: ...
https://stackoverflow.com/ques... 

Swift: Testing optionals for nil

...ing with possXYZ (the unwrapped value of xyz) } else { // do something now that we know xyz is .None } This way you can both test if xyz contains a value and if so, immediately work with that value. With regards to your compiler error, the type UInt8 is not optional (note no '?') and therefor...
https://stackoverflow.com/ques... 

The Role Manager feature has not been enabled

... After adding above to web.config roleManager is enabled. But now I am getting exception Unable to connect to SQL Server database – Irfan Yusanif Jan 4 '16 at 13:51 ...
https://stackoverflow.com/ques... 

Regular expression for floating point numbers

...tion.) That said, most regex engines (actually, all of them, as far as I know) would accept \.. Most likely, there's an issue with escaping. The Trouble with Escaping Some languages have built-in support for regexes, such as JavaScript. For those languages that don't, escaping can be a problem. ...
https://stackoverflow.com/ques... 

Convert String to Float in Swift

... Swift 2.0+ Now with Swift 2.0 you can just use Float(Wage.text) which returns a Float? type. More clear than the below solution which just returns 0. If you want a 0 value for an invalid Float for some reason you can use Float(Wage.tex...
https://stackoverflow.com/ques... 

Is it possible to make a Tree View with Angular?

... Have a look at this fiddle Original: http://jsfiddle.net/brendanowen/uXbn6/8/ Updated: http://jsfiddle.net/animaxf/uXbn6/4779/ This should give you a good idea of how to display a tree like structure using angular. It is kind of using recursion in html! ...
https://stackoverflow.com/ques... 

Is it possible to use JavaScript to change the meta-tags of the page?

...cription]').attr('content', new_description); I think it does matter for now, since google said that they will index ajax content via #!hashes and _escaped_fragment_ calls. And now they can verify it (even automatically, with headless browsers, see the 'Creating HTML Snapshots' link on the page me...
https://stackoverflow.com/ques... 

How do I wait for an asynchronously dispatched block to finish?

..._FOREVER); } else { while (dispatch_semaphore_wait(sema, DISPATCH_TIME_NOW)) { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0]]; } } This should behave correctly even if runSomeLongOperationAndDo: decides that the operat...