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What is the difference between LINQ ToDictionary and ToLookup
...lified way of looking at it is that a Lookup<TKey,TValue> is roughly comparable to a Dictionary<TKey,IEnumerable<TValue>>
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Remove non-numeric characters (except periods and commas) from a string
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You could use preg_replace to swap out all non-numeric characters and the comma and period/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
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Difference between document.addEventListener and window.addEventListener?
...n move even closer to the source and use document.body or even some closer common parent in the document (if possible).
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Setup RSpec to test a gem (not Rails)
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To be fair, you should instead invoke RSpec's init command to generate the spec skeleton files rather than having to manually type them in. This would ensure compatibility with the version of RSpec that you are using: rspec --init
– Attila Györffy
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Proper way to catch exception from JSON.parse
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In Vim, how do you search for a word boundary character, like the \b in regexp?
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I'm assuming you mean Perl Compatible Regular Expressions. Vim's regex syntax predates PCRE. I added links to related questions.
– Adam Monsen
May 12 '17 at 4:04
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Converting NumPy array into Python List structure?
...ver numpy type they may have (e.g. np.int32 or np.float32) to the "nearest compatible Python type" (in a list). If you want to preserve the numpy data types, you could call list() on your array instead, and you'll end up with a list of numpy scalars. (Thanks to Mr_and_Mrs_D for pointing that out in ...
Find method references in Xcode
... @DanielKaplan I would guess not, since in at least some cases the compiler won't have any way of knowing which implementation is to be called.
– Mark Amery
May 5 '15 at 23:51
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How to stop Visual Studio from “always” checking out solution files?
...ow? MS closed this issue as "not reproducible" - stupid? connect.microsoft.com/VisualStudio/feedback/details/573538/…
– mattanja
May 14 '12 at 7:06
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How to extract text from a string using sed?
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That's why, isn't it? Replace whatever comes before and after the match with norhing, then print the whole line.
– tripleee
Jul 19 '12 at 21:01
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