大约有 15,630 项符合查询结果(耗时:0.0243秒) [XML]

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. – Coanda ...
https://stackoverflow.com/ques... 

Which comment style should I use in batch files?

... If there's delayed variable usage in line, :: will cause some error messages, e.g. Can not find specificed disk driver..... So better use REM then. – Scott Chu Jul 21 '16 at 7:15 ...
https://stackoverflow.com/ques... 

Google Play Services Library update and missing symbol @integer/google_play_services_version

...x it. That in mind, unless explicitly modified already, I do not think the error exists within the folder. It is possible it is simply out of date and needs to be re-downloaded (unlikely to be the issue as well but you never know). – PSchuette Feb 25 '14 at 13:...
https://stackoverflow.com/ques... 

OpenSSL and error in reading openssl.conf file

...ommand there instead. It worked correctly but I was still getting the same error in the openssl.exe saying "Unable to load config info from wrong_path/ssl/openssl.cnf" so I tried the solution below saying to add the parameter -config with your openssl directory and that worked perfect. so I'm happy....
https://stackoverflow.com/ques... 

Apache VirtualHost 403 Forbidden

...ite must run under domain www.mytest.com . I always get a 403 Forbidden error. I am on Ubuntu 10.10 server edition. The doc root is under dir /var/www . The following are my settings: ...
https://stackoverflow.com/ques... 

Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I

... This doesn't work for extended stored procedures though. The error is The metadata could not be determined because statement 'EXECUTE <procedurename> @retval OUTPUT' in procedure ...' invokes an extended stored procedure. – GSerg Jun 10 at 8...
https://stackoverflow.com/ques... 

Detecting an undefined object property

...e: different from having a value of undefined) identifier without an early error: if(typeof myVariable === 'undefined') { alert('myVariable is either the special value `undefined`, or it has not been declared'); } In versions of JavaScript prior to ECMAScript 5, the property named "undefined" o...
https://stackoverflow.com/ques... 

JavaScript function order: why does it matter?

... When you call them. Here's some examples. bar(); //This won't throw an error function bar() {} foo(); //This will throw an error var foo = function() {} bar(); function bar() { foo(); //This will throw an error } var foo = function() {} bar(); function bar() { foo(); //This _won...
https://stackoverflow.com/ques... 

Scala underscore - ERROR: missing parameter type for expanded function

... 'https%3a%2f%2fstackoverflow.com%2fquestions%2f7627117%2fscala-underscore-error-missing-parameter-type-for-expanded-function%23new-answer', 'question_page'); } ); Post as a guest ...
https://stackoverflow.com/ques... 

“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2

I'm trying learn Python (3 to be more specific) and I'm getting this error: 3 Answers ...