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How do I parse a string into a number with Dart?
...et 172. In JavaScript parseInt("-01:00") works just fine but Dart gives an error. Is there any easy way without checking manually character-by-character? Thanks.
– user1596274
Aug 18 at 14:29
...
Python executable not finding libpython shared library
...tOS 7 minimal. It all worked fine on its own, but I saw the shared library error mentioned in this question when I tried running a simple CGI script:
tail /var/log/httpd/error_log
AH01215: /opt/rh/rh-python35/root/usr/bin/python: error while loading shared libraries: libpython3.5m.so.rh-python35-1....
How to use phpexcel to read data and insert into database?
...el = $objReader->load($inputFileName);
} catch(Exception $e) {
die('Error loading file "'.pathinfo($inputFileName,PATHINFO_BASENAME).'": '.$e->getMessage());
}
// Get worksheet dimensions
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = ...
Check if a Windows service exists and delete in PowerShell
...f you just want to check service existence:
if (Get-Service "My Service" -ErrorAction SilentlyContinue)
{
"service exists"
}
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Convert HTML + CSS to PDF [closed]
... program.
HTML2PDF looked the most promising but I kept having this weird error about null reference arguments to node_type. I finally found the solution to this. Basically, PHP 5.1.x worked fine with regex replaces (preg_replace_*) on strings of any size. PHP 5.2.1 introduced a php.ini config d...
Difference between Static and final?
...nitializer of the class in which it is declared; otherwise, a compile-time error occurs in both cases.
Note: If the variable is a reference, this means that the variable cannot be re-bound to reference another object. But the object that it references is still mutable, if it was originally mutab...
Deny all, allow only one IP through htaccess
...
This can be improved by using the directive designed for that task.
ErrorDocument 403 /specific_page.html
Order Allow,Deny
Allow from 111.222.333.444
Where 111.222.333.444 is your static IP address.
When using the "Order Allow,Deny" directive the requests must match either Allow or Deny, i...
Making the iPhone vibrate
...and the kSystemSoundID_Vibrate is a regular Int. The compiler gives you an error for trying to cast from Int to UInt32, but the error reads as "Cannot convert to SystemSoundID", which is confusing. Why didn't apple just make it a Swift enum is beyond me.
@aponomarenko's goes into the details, my ans...
Do I need to manually close an ifstream?
...
Sometimes you do need to call close() manually for error handling.
– ks1322
Aug 7 '16 at 11:37
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How to avoid null checking in Java?
...> is an object whose toString() method's output will be included in the error.
An assert statement throws an Error (AssertionError) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the option -ea to the JVM. You can enable and disable ass...