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Check if instance is of a type
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With C# 7 you can combine is and as with pattern matching: if (x is TForm tf) {…
– Richard
Nov 24 '17 at 11:19
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Center image in div horizontally [duplicate]
...sted here assumes that you know the dimensions of your img, which is not a common scenario. Also, planting the dimensions into the solution is painful.
Simply set:
/* for the img inside your div */
display: block;
margin-left: auto;
margin-right: auto;
or
/* for the img inside your div */
displ...
How are “mvn clean package” and “mvn clean install” different?
...ween mvn clean package and mvn clean install ? When I run both of these commands, they both seem to do the same thing.
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Clone only one branch [duplicate]
...anch, for example:
git clone -b mybranch --single-branch git://sub.domain.com/repo.git
Note: Also you can add another single branch or "undo" this action.
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RelativeLayout is taking fullscreen for wrap_content
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edited Jun 20 at 9:12
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answered Jun 26 '11 at 20:15
user658042user65804...
String contains - ignore case [duplicate]
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You can use
org.apache.commons.lang3.StringUtils.containsIgnoreCase(CharSequence str,
CharSequence searchStr);
Checks if CharSequence contains a search CharSequence irrespective of
case, handling null. Ca...
Check if an apt-get package is installed and then install it if it's not on Linux
...s, too.
dpkg-query -l <packagename>
To find what package owns the command, try:
dpkg -S `which <command>`
For further details, see article Find out if package is installed in Linux and dpkg cheat sheet.
sha...
Is there a conditional ternary operator in VB.NET?
...hecking with option strict on. (Dim var As Integer = Iif(true, 1, 2) won't compile with option strict on because you could just as easily write Dim var As Integer = Iif(true, new Object(), new Object()). You CAN write Dim var As Integer = If(true, 1, 2) with option strict on though, because it'll ch...
Firefox ignores option selected=“selected”
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how does multiplication differ for NumPy Matrix vs Array classes?
The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
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