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What is Weak Head Normal Form?
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I'll try to give an explanation in simple terms. As others have pointed out, head normal form does not apply to Haskell, so I will not consider it here.
Normal form
An expression in normal form is fully evaluated, and no sub-expression could be evaluated ...
Behaviour of increment and decrement operators in Python
I notice that a pre-increment/decrement operator can be applied on a variable (like ++count ). It compiles, but it does not actually change the value of the variable!
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Error in finding last used cell in Excel with VBA
When I want to find the last used cell value, I use:
13 Answers
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What's the scope of a variable initialized in an if statement?
I'm new to Python, so this is probably a simple scoping question. The following code in a Python file (module) is confusing me slightly:
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Creating virtual directories in IIS express
Is there any way to create a virtual directory in IIS express? I know that Cassini can't do this and it would be nice to be able to do this without using a full version of IIS.
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Is Ruby pass by reference or by value?
@user object adds errors to the lang_errors variable in the update_lanugages method.
when I perform a save on the @user object I lose the errors that were initially stored in the lang_errors variable.
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Docker and securing passwords
I've been experimenting with Docker recently on building some services to play around with and one thing that keeps nagging me has been putting passwords in a Dockerfile. I'm a developer so storing passwords in source feels like a punch in the face. Should this even be a concern? Are there any good ...
Running Bash commands in Python
On my local machine, I run a python script which contains this line
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What should main() return in C and C++?
What is the correct (most efficient) way to define the main() function in C and C++ — int main() or void main() — and why? And how about the arguments?
If int main() then return 1 or return 0 ?
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What does “to stub” mean in programming?
For example, what does it mean in this quote?
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