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How do I list all versions of a gem available at a remote site?
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What's the result of += in C and C++?
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How to get a URL parameter in Express?
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Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.
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How to tell if a string is not defined in a Bash shell script
...uted, else the
function exists with 'blahblah' as an error message.
to base your program logic on whether the variable $mystr is defined or not, you can do the following:
isdefined=0
${mystr+ export isdefined=1}
now, if isdefined=0 then the variable was undefined, if isdefined=1 the variable ...
Why do I need to explicitly push a new branch?
...the original developers this quickly, but I can give you an educated guess based on a few years of Git experience.
No, not every branch is something you want to push to the outside world. It might represent a private experiment.
Moreover, where should git push send all the branches? Git can work w...
Studies on optimal code width?
... at the environment that the code will be used in, and set width standards based on that context.
For example, when I worked in Emacs on XWindows, it worked well to have 2 Emacs windows side-by-side at all times. That limited them to 80 characters, so that was my max line length.
At one point I w...
How big should a UIBarButtonItem image be?
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RVM is not working in ZSH
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Why does PostgreSQL perform sequential scan on indexed column?
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The interesting question is how the database knows how many rows the query will return without doing it first? Does it store stats such as the number of different values vs table size somewhere?
– Laurent Grégoire
Oct 10 '16 ...