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How to cast List to List
This does not compile, any suggestion appreciated.
15 Answers
15
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Run function from the command line
....py):
$ python -c 'import foo; print foo.hello()'
Alternatively, if you don't care about namespace pollution:
$ python -c 'from foo import *; print hello()'
And the middle ground:
$ python -c 'from foo import hello; print hello()'
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How to define a function in ghci across multiple lines?
... your example), you can just put them all on one line and it works (guards do not care about spacing)
let abs n | n >= 0 = n | otherwise = -n
If you wanted to write your function with multiple definitions that pattern match on the arguments, like this:
fact 0 = 1
fact n = n * fact (n-1)
The...
Best way to test SQL queries [closed]
...s you to add "shims" between them, and "wrappers" around them, just as you do in procedural code.
How do you do this? By making each significant thing a query does into a view. Then you compose more complex queries out of these simpler views, just as you compose more complex functions out of more p...
How to do constructor chaining in C#
...base(...)
you can put extra code into each constructor
the default (if you don't specify anything) is base()
For "why?":
code reduction (always a good thing)
necessary to call a non-default base-constructor, for example:
SomeBaseType(int id) : base(id) {...}
Note that you can also use object...
Using Java 8's Optional with Stream::flatMap
...ode, but I have come across a seemingly-simple situation that is tricky to do concisely.
12 Answers
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How to negate specific word in regex? [duplicate]
...ression where negation applies to the specific word - so in my example how do I negate an actual bar , and not "any chars in bar"?
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How do I make a LinearLayout scrollable?
After I start the activity I am unable to scroll down to see other buttons and options in the xml defined below.
8 Answers...
Empty set literal?
... @user763305: The language manual is pretty clear on this point. docs.python.org/library/stdtypes.html#set-types-set-frozenset says "non-empty sets ... can be created by placing a comma-separated list of elements within braces"
– S.Lott
May 25 '11 at ...
Why do people hate SQL cursors so much? [closed]
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that article is 7 years old, do you think that perhaps things might have changed in the meantime?
– Steven A. Lowe
Nov 13 '08 at 16:46
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