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What does the “yield” keyword do?
... print(i)
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Here it's a useless example, but it's handy when you know your function will return a huge set of values that you will only need to read once.
To master yield, you must understand that when you call the function, the code you have written in the function body does not run. The ...
How can we run a test method with multiple parameters in MSTest?
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I've found that something similar is now possible in Visual Studio 2012 Update 1, just FYI for future consideration of anybody looking at this answer.
– McAden
Dec 4 '12 at 19:53
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How can I create a unique constraint on my column (SQL Server 2008 R2)?
... PK__Customer__3213E83FCC4A1DFA (n/a) (n/a) (n/a) (n/a) id
---- now adding the unique constraint
ALTER TABLE Customer ADD CONSTRAINT U_Name UNIQUE(Name)
-- Commands completed successfully.
sp_help Customer
---> index
---index_name index_description index_keys
---PK__Customer__3...
Cartesian product of x and y array points into single array of 2D points
... following sections, I include some tests of other alternatives. These are now somewhat out of date, but rather than duplicate effort, I've decided to leave them here out of historical interest. For up-to-date tests, see Panzer's answer, as well as Nico Schlömer's.
Tests against alternatives
Here...
Regex to validate password strength
...ed to include your test case @PriyankBolia. See new robulink, which should now work.
– lsu_guy
Sep 18 at 19:56
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Maven fails to find local artifact
...mvn -U will force update from remote repository - again, assuming you have now populated remote with said artifact.
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Favorite Django Tips & Features?
...s of ...', I am curious to hear about your favorite Django tips or lesser known but useful features you know of.
55 Answers...
What does `:_*` (colon underscore star) do in Scala?
...s taken as single arg
f(x:_*) // 2 as x is "unpacked" as a Seq[Any]*
So now we know what :_* do is to tell compiler : please unpack this argument and bind those elements to the vararg parameter in function call rather than take the x as a single argument .
So in a nutshell, the :_* is to remove ...
Get nth character of a string in Swift programming language
... Note: This answer has been already edited, it is properly implemented and now works for substrings as well. Just make sure to use a valid range to avoid crashing when subscripting your StringProtocol type. For subscripting with a range that won't crash with out of range values you can use this impl...
How do I concatenate two lists in Python?
...ession in Python; with it, joining two lists (applies to any iterable) can now also be done with:
>>> l1 = [1, 2, 3]
>>> l2 = [4, 5, 6]
>>> joined_list = [*l1, *l2] # unpack both iterables in a list literal
>>> print(joined_list)
[1, 2, 3, 4, 5, 6]
This functi...