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How can I check a C# variable is an empty string “” or null? [duplicate]
I am looking for the simplest way to do a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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Omit rows containing specific column of NA
I want to know how to omit NA values in a data frame, but only in some columns I am interested in.
8 Answers
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Getting the client's timezone offset in JavaScript
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Sachin Joseph
14.4k33 gold badges3232 silver badges5353 bronze badges
answered Jul 7 '09 at 9:53
NickFitzNickFitz
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Bring a window to the front in WPF
How can I bring my WPF application to the front of the desktop? So far I've tried:
18 Answers
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How to create byte array from HttpPostedFile
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Use a BinaryReader object to return a byte array from the stream like:
byte[] fileData = null;
using (var binaryReader = new BinaryReader(Request.Files[0].InputStream))
{
fileData = binaryReader.ReadBytes(Request.Files[0].ContentLength);
}
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Center image horizontally within a div
...d question but since the usual ways of center aligning an image are not working I thought I would ask. How can I center align (horizontally) an image inside its container div?
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Python function as a function argument?
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Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Jun 9 '11 at 7:48
Manuel SalvadoresM...
How to pass prepareForSegue: an object
...fferent object (that holds data) depending on which callout button was clicked.
10 Answers
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Quick way to create a list of values in C#?
I'm looking for a quick way to create a list of values in C#. In Java I frequently use the snippet below:
10 Answers
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Maven - How to compile tests without running them ?
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you can try to use parameter -DskipTests
References:
Maven Surefire Plugin # skipTests
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