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List of tuples to dictionary
... edited Dec 13 '19 at 23:38
Boris
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answered Jun 29 '11 at 14:36
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Express command not found
For some reason after installing Express globally on my machine with npm install -g express if I cd into a directory and try to run express I get the following error:
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C++ cout hex values?
... std::hex << a;
There are many other options to control the exact formatting of the output number, such as leading zeros and upper/lower case.
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How to log source file name and line number in Python
Is it possible to decorate/extend the python standard logging system, so that when a logging method is invoked it also logs the file and the line number where it was invoked or maybe the method that invoked it?
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How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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Where is Vagrant saving changes to the VM?
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Vagrant imports the base box which is located at ~/.vagrant.d/boxes/, like you said.
This is where the base boxes are kept. It uses it to start a VM from the clean state. When importing a VM, the responsibility of where to store data fi...
R - Markdown avoiding package loading messages
...ve been using Knitr via R-Studio, and think it is pretty neat. I have a minor issue though. When I source a file in an R-Chunk, the knitr output includes external comments as follows:
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Is there a difference between “raise exception()” and “raise exception” without parenthesis?
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The short answer is that both raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception.
The relevant section from the docs says, "raise evaluates the first expression as the ex...
Why does the C# compiler go mad on this nested LINQ query?
...llowing code and you'll find that compiler takes >3 GB of RAM (all free memory on my machine) and very long time to compile (actually I get IO exception after 10 minutes).
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Converting camel case to underscore case in ruby
Is there any ready function which converts camel case Strings into underscore separated string?
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