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What does $$ (dollar dollar or double dollar) mean in PHP?
Example is a variable declaration within a function:
7 Answers
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How to use a variable to specify column name in ggplot
I have a ggplot command
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How to wait for a keypress in R?
I want to pause my R script until the user presses a key.
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Finding current executable's path without /proc/self/exe
It seems to me that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
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How to get the type of T from a member of a generic class or method?
Let say I have a generic member in a class or method, so:
16 Answers
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A non-blocking read on a subprocess.PIPE in Python
I'm using the subprocess module to start a subprocess and connect to its output stream (standard output). I want to be able to execute non-blocking reads on its standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'...
What is the use of Enumerable.Zip extension method in Linq?
What is the use of Enumerable.Zip extension method in Linq?
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
I want to refresh my memory on the conditions under which a compiler typically auto generates a default constructor, copy constructor and assignment operator.
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How do I delete a Git branch locally and remotely?
I want to delete a branch both locally and remotely.
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Is there a “do … until” in Python? [duplicate]
Is there a
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