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What is the formal difference in Scala between braces and parentheses, and when should they be used?
What is the formal difference between passing arguments to functions in parentheses () and in braces {} ?
9 Answers
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What are free monads?
...re accessible explanation.
Free monads are just a general way of turning functors into monads. That is, given any functor f Free f is a monad. This would not be very useful, except you get a pair of functions
liftFree :: Functor f => f a -> Free f a
foldFree :: Functor f => (f r -> ...
How do I initialize the base (super) class?
...):
pass
class Y(X):
def __init__(self):
super(Y, self).__init__(123)
def doit(self, foo):
return super(Y, self).doit(foo)
Because python knows about old- and new-style classes, there are different ways to invoke a base method, which is why you've found multiple ways of doing so.
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Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
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123
Even though this question is answered, providing an example as to what "theirs" and "ours" mea...
Linux: compute a single hash for a given folder & contents?
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123
One possible way would be:
sha1sum path/to/folder/* | sha1sum
If there is a whole directory ...
Mediator Vs Observer Object-Oriented Design Patterns
...ication while observer works only one way.
– kiwicomb123
Mar 3 '19 at 6:51
Exactly, glad it helped
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Reuse Cucumber steps
...ccessfully
Examples:
|username|password|may or may not|
|paul |123$ |may |
|dave |1111 |may not |
In my step definition, (This is Java)
@Given(I login with \"([^\"]*)\" and \"([^\"]*)\"$)
public void I_login_with_and(String username, String password){
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Algorithm to return all combinations of k elements from n
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Usage:
var result = Combinations(new[] { 1, 2, 3, 4, 5 }, 3);
Result:
123
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What is the @Html.DisplayFor syntax for?
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What does Ruby have that Python doesn't, and vice versa?
..., 2, 3, 4].each{ |e| puts e + 5 }
> [6, 7, 8, 9]
Python has anonymous functions/closures/lambdas, but it doesn't quite have blocks since it's missing some of the useful syntactic sugar. However, there's at least one way to get it in an ad-hoc fashion. See, for example, here.
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