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How do I force make/GCC to show me the commands?
...ebug a compilation problem, but I cannot seem to get GCC (or maybe it is make??) to show me the actual compiler and linker commands it is executing.
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How does one remove an image in Docker?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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How do you do relative time in Rails?
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Sounds like you're looking for the time_ago_in_words method (or distance_of_time_in_words), from ActiveSupport. Call it like this:
<%= time_ago_in_words(timestamp) %>
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What's the function like sum() but for multiplication? product()?
... See: math.prod().
Older info: Python 3.7 and prior
The function you're looking for would be called prod() or product() but Python doesn't have that function. So, you need to write your own (which is easy).
Pronouncement on prod()
Yes, that's right. Guido rejected the idea for a built-in prod() fu...
System.MissingMethodException: Method not found?
What once was working in my asp.net webforms app now throws this error:
34 Answers
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Performance of FOR vs FOREACH in PHP
...ns the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and...
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How to hide reference counts in VS2013?
...013 Ultimate, because it is not present in my professional preview. But looking online I found that the feature is called Code Information Indicators or CodeLens, and can be located under
Tools → Options → Text Editor → All Languages → CodeLens
(for RC/final version)
or
To...
Using the last-child selector
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Fabrício Matté
63.9k2222 gold badges114114 silver badges156156 bronze badges
answered Aug 18 '09 at 11:51
VoteyDiscipleV...
Double Negation in C++
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It's a trick to convert to bool.
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Getting the last argument passed to a shell script
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This is a bit of a hack:
for last; do true; done
echo $last
This one is also pretty portable (again, should work with bash, ksh and sh) and it doesn't shift the arguments, which could be nice.
It uses the fact that for implicitly loops over th...