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What does a double * (splat) operator do
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Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
> foo 10, 20, 30
=> [10, [20, 30], {}]
> foo 10, ...
Is there any difference between a GUID and a UUID?
...ntain any hex digit in any position, while RFC4122 requires certain values for the version and variant fields. Also, [per that same link], GUIDs should be all-upper case, whereas UUIDs should be "output as lower case characters and are case insensitive on input". This can lead to incompatibilities...
Twitter bootstrap modal-backdrop doesn't disappear
... the modal and then replace the data.
If that doesn't work you can always force it to go away by doing the following:
$('#your-modal-id').modal('hide');
$('body').removeClass('modal-open');
$('.modal-backdrop').remove();
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Force Git to always choose the newer version during a merge?
...it merge branch -X theirs.
From man git-merge:
ours:
This option forces conflicting hunks to be auto-resolved cleanly by favoring our version. Changes from the other tree that do not
conflict with our side are reflected to the merge result. For a binary file, the entire contents are take...
FFmpeg on Android
...h in getting ffmpeg to work on Android:
Build static libraries of ffmpeg for Android. This was achieved by building olvaffe's ffmpeg android port (libffmpeg) using the Android Build System. Simply place the sources under /external and make away. You'll need to extract bionic(libc) and zlib(libz) f...
Multiline for WPF TextBox
I am developing an app for sending some feedback.
5 Answers
5
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Visual studio long compilation when replacing int with double
My copy of VS2013 Ultimate compiles this code for 60+ seconds:
2 Answers
2
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How to get a specific “commit” of a gem from github?
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
How to output a comma delimited list in jinja python template?
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or is some cases {{ "," if not forloop.last }}
– obotezat
Oct 3 '17 at 13:09
6
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How do I comment on the Windows command line?
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The command you're looking for is rem, short for "remark".
There is also a shorthand version :: that some people use, and this sort of looks like # if you squint a bit and look at it sideways. I originally preferred that variant since I'm a bash-aholic...