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Replace a character at a specific index in a string?
I'm trying to replace a character at a specific index in a string.
8 Answers
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How does origin/HEAD get set?
I have a branch set up to track a ref in origin. git checkout <branchname> switches to that branch, and a git status will show me how far ahead or behind my branch is from origin, but I'm surprised that origin/HEAD still points at origin/master , and not origin/<branchname>
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What is the most efficient/elegant way to parse a flat table into a tree?
Assume you have a flat table that stores an ordered tree hierarchy:
14 Answers
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Handling Dialogs in WPF with MVVM
In the MVVM pattern for WPF, handling dialogs is one of the more complex operations. As your view model does not know anything about the view, dialog communication can be interesting. I can expose an ICommand that when the view invokes it, a dialog can appear.
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How to save a list as numpy array in python?
Is possible to construct a NumPy array from a python list?
9 Answers
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Techniques for Tracing Constraints
Here's the scenario: I've written some code with a type signature and GHC complains could not deduce x ~ y for some x and y . You can usually throw GHC a bone and simply add the isomorphism to the function constraints, but this is a bad idea for several reasons:
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Which is better option to use for dividing an integer number by 2?
Which of the following techniques is the best option for dividing an integer by 2 and why?
23 Answers
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How should strace be used?
A colleague once told me that the last option when everything has failed to debug on Linux was to use strace .
12 Answers
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Understanding implicit in Scala
I was making my way through the Scala playframework tutorial and I came across this snippet of code which had me puzzled:
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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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