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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
...
The best practice is selecting the most appropriate one.
.Net Framework 4.0 Beta 2 has a new IsNullOrWhiteSpace() method for
strings which generalizes the IsNullOrEmpty() method to also include other white
space besides empty string.
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY
...uses). If
you want a debuggable APK that people can install without adb, select
your debug variant and click Build > Build APK(s).
Same goes for release build, with Android Studio 3 you need to go to Build > Build APK(s) to have a non testable release apk that you can submit to the store...
Get specific object by id from array of objects in AngularJS
... };
// We filter the array by id, the result is an array
// so we select the element 0
single_object = $filter('filter')(foo.results, function (d) {return d.id === 2;})[0];
// If you want to see the result, just check the log
console.log(single_object);
}]);
Plunker: http://...
Copying files into the application folder at compile time
... Isn't this just the same as right-clicking the project and selecting "Add | Existing Item" from Solution Explorer, then setting the File property "Copy to Output Directory" to "Copy if newer". There's no need to modify the XML directly.
– Antony Booth
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“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing
...4-bit Importer by clicking Start and searching for "Import and Export" and selecting the 64-bit tool.
– blizz
Apr 27 '17 at 16:21
5
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How to set SQL Server connection string?
...om the conection of Microsoft Visual Studio with the attached DB. When you select the DB, in the properties panel is shown the connection string.
The complete list of properties of the SqlConnectionStringBuilder class is listed in this page from the Microsoft MSDN site.
About the default user of S...
How To Launch Git Bash from DOS Command Line?
...rs maybe have C:\Program Files\Git
find the PATH environment variable and select it. Click Edit. (If the PATH environment variable does not exist, click New).
In the Edit window, add a new value %GIT_HOME% and %GIT_HOME%\bin. Click OK. Close all remaining windows by clicking OK.
[Make sure you clo...
“cannot resolve symbol R” in Android Studio
... compileSdkVersion 21
buildToolsVersion '21.0.1'
......
....
}
Or
Select File | Project Structure change Build Tools Version to 21.1.1
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Bash command to sum a column of numbers [duplicate]
... With bc -l you can even add up float numbers. With cut you can select columns from the input: cat input.txt | cut -d ' ' -f 8 | paste -sd+ | bc -l will add all float numbers in column 8 of the input (space being the field separator).
– Arne
Sep 24 '...
How can I style even and odd elements?
Is it possible to use CSS pseudo-classes to select even and odd instances of list items?
9 Answers
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