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How can I check whether a numpy array is empty or not?
... This is great for numpy, but is unfortunate that it is considered unpythonic for lists. Check out discussion for lists: stackoverflow.com/questions/53513/… It would be nice to use same pattern for numpy arrays and lists.
– eric
Jul 28 '19 at...
How to convert a string or integer to binary in Ruby?
... For those confused by @decay's code like myself, he is using 'sprintf': apidock.com/ruby/Kernel/sprintf
– Taylor Liss
Sep 4 '18 at 0:15
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In Perl, how can I read an entire file into a string?
...iables related to filehandles in perldoc perlvar and perldoc -f local.
Incidentally, if you can put your script on the server, you can have all the modules you want. See How do I keep my own module/library directory?.
In addition, Path::Class::File allows you to slurp and spew.
Path::Tiny gives e...
How to install grunt and how to build script with it
...your build process by following command:
grunt
I hope this give you an idea how to work with GruntJS build.
NOTE:
You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.
To do so, please follow these steps:
npm install -g grunt-...
JavaScript plus sign in front of function expression
...reference to the function, which can be invoked, so the parentheses are valid.
+ is just one of the options. It can also be -, !, ~, or just about any other unary operator. Alternately, you can use parentheses (this is more common, but neither more nor less correct syntactically):
(function() { co...
How can I make setInterval also work when a tab is inactive in Chrome?
...hat the tab with my code becomes inactive), the setInterval is set to an idle state for some reason.
13 Answers
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Make virtualenv inherit specific packages from your global site-packages
...t way pip will install what you've requested locally even though a system-wide version exists. Your python interpreter will look first in the virtualenv's package directory, so those packages should shadow the global ones.
s...
Remove non-numeric characters (except periods and commas) from a string
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@billrichards As the OP stated (emphasis mine), "avoid alphabets or characters except comma and dot".
– John Parker
Mar 31 '14 at 15:42
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Write to UTF-8 file in Python
...
This didn't work for me, Python 3 on Windows. I had to do this instead with open(file_name, 'wb') as bomfile: bomfile.write(codecs.BOM_UTF8) then re-open the file for append.
– Dustin Andrews
...
What is a method group in C#?
...arentheses, again; overload resolution kicks in and you have unambiguously identified a method call.
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