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Fastest check if row exists in PostgreSQL
...f a single row from the batch exists in the table because then I know they all were inserted.
8 Answers
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ExpandableListView - hide indicator for groups with no children
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Try this >>>
for all items
getExpandableListView().setGroupIndicator(null);
In xml
android:groupIndicator="@null"
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How to do a non-greedy match in grep?
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eegg: dot all modifier is also known as multiline. It's a modifier that changes the "." match behavior to include newlines (normally it doesn't). There's no such modifier in grep, but there is in pcregrep.
– A. Wi...
Preventing an image from being draggable or selectable without using JS
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Worked on all browsers.
– Milad Abooali
Aug 21 '15 at 3:16
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Dilemma: when to use Fragments vs Activities:
.... In the beginning this will not have any sense, but in time, you will actually be able to tell if you need Fragment or not.
There is a good practice I found very helpful for me. It occurred to me while I was trying to explain something to my daughter.
Namely, imagine a box which represents a sc...
How do I copy a string to the clipboard on Windows using Python?
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Actually, pywin32 and ctypes seem to be an overkill for this simple task. Tkinter is a cross-platform GUI framework, which ships with Python by default and has clipboard accessing methods along with other cool stuff.
If all you ...
How to find encoding of a file via script on Linux?
I need to find the encoding of all files that are placed in a directory. Is there a way to find the encoding used?
17 Answe...
Mix Razor and Javascript code
...avascript blocks when executed but I hate how the syntax highlighting gets all sorts of confused. It highlights all the Razor code as invalid Syntax because it's stuck in Javascript mode I believe.
– Chev
Aug 10 '12 at 16:29
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What is a “translation unit” in C++
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A translation unit is for all intents and purposes a file (.c/.cpp), after it's finished including all of the header files.
http://msdn.microsoft.com/en-us/library/bxss3ska%28VS.80%29.aspx
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In Java, what is the best way to determine the size of an object?
...ect. Is there an easy way to find out the size of that object programmatically? Is there a reference that defines how large primitive types and object references are for a VM ?
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