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How do I test for an empty string in a Bash case statement?
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The case statement uses globs, not regexes, and insists on exact matches.
So the empty string is written, as usual, as "" or '':
case "$command" in
"") do_empty ;;
something) do_something ;;
prefix*) do_prefix ;;
*) do_other ;;
esac
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What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
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@thanikkal Make sure you are using Minitest::Spec and not Minitest::Test. The Spec DSL, including expectations, are only available when using Minitest::Spec.
– blowmage
Oct 10 '16 at 15:28
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What is the difference between GitHub and gist?
What is the purpose of gist and how is it different from regular code sharing/maintaining using GitHub?
8 Answers
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Are PHP include paths relative to the file or the calling code?
I'm having trouble understanding the ruleset regarding PHP relative include paths. If I run file A.PHP- and file A.PHP includes file B.PHP which includes file C.PHP, should the relative path to C.PHP be in relation to the location of B.PHP, or to the location of A.PHP? That is, does it matter whic...
How do I use a compound drawable instead of a LinearLayout that contains an ImageView and a TextView
.... It came up with a lot of good suggestions, but this one I cannot understand.
4 Answers
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Iterate keys in a C++ map
...ator returns (for example because you want to use your key-iterator with standard algorithms, so that they operate on the keys instead of the pairs), then take a look at Boost's transform_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You ...
Embed YouTube video - Refused to display in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'
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The YouTube URL in src must have and use the embed endpoint instead of watch, so for instance let’s say you want to embed this YouTube video: https://www.youtube.com/watch?v=P6N9782MzFQ (browser's URL).
You should use the embed endpoint, so the URL now sh...
runOnUiThread vs Looper.getMainLooper().post in Android
...versus Looper.getMainLooper().post() to execute a task on the UI thread in Android??
1 Answer
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jQuery get mouse position within an element
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One way is to use the jQuery offset method to translate the event.pageX and event.pageY coordinates from the event into a mouse position relative to the parent. Here's an example for future reference:
$("#something").click(function(e){
var parentOffset = $(this).parent().offset();
//or $(...
Unpack a list in Python?
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where my_list can be any iterable; Python will loop over the given object and use each element as a separate argument to the function.
See the call expression documentation.
There is a keyword-parameter equivalent as well, using two stars:
kwargs = {'foo': 'bar', 'spam': 'ham'}
f(**kwargs)
and...