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Why should I use var instead of a type? [duplicate]
...a reason to use var. If you are do not know what type of is being returned from some function, that function needs to be refactored as it is clearly too difficult to understand. Any time that is saved by a developer on anything has to be picked up by another developer( usually a junior ) in the futu...
What is 'Currying'?
...argument to map must be a function that takes only 1 argument - an element from the list. Multiplication - as a mathematical concept - is a binary operation; it takes 2 arguments. However, in Haskell * is a curried function, similar to the second version of add in this answer. The result of (* 5) is...
Test if lists share any items in python
...ection method have to allocate new memory for the intermediary variables:
from timeit import timeit
>>> timeit('bool(set(a) & set(b))', setup="a=list(range(1000));b=list(range(1000))", number=100000)
26.077727576019242
>>> timeit('any(i in a for i in b)', setup="a=list(range(1...
Trigger 404 in Spring-MVC controller?
...ith their own @ResponseStatus. That way, you decouple your controller code from the detail of HTTP status codes.
– skaffman
Jan 14 '10 at 19:50
10
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Declare and Initialize String Array in VBA
...() As String: arrWsNames = Split("Value1,Value2", ",") The initialization from comment above does not work for me, because Array() creates an Array of Variants and not Strings
– Andrej Sramko
Dec 4 '14 at 8:50
...
Why no love for SQL? [closed]
...reordered WHERE clauses to optimize queries in oracle. They where resolved from bottom to the top... terrible.
– Stefan Steinegger
Oct 29 '09 at 12:55
16
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Any reason to write the “private” keyword in C#?
...ng the question. But, some people write VB, some C++, some even F# (coming from other functional languages such as Haskell perhaps?), better than they do on C#. So, for them (and for us if we forget about it after 2 years of no c#ing) it's better if accessors are explicit. Don't undervalue the impac...
How can I plot with 2 different y-axes?
...org/doku.php?id=tips:graphics-base:2yaxes, link now broken: also available from the wayback machine
Two different y axes on the same plot
(some material originally by Daniel Rajdl 2006/03/31 15:26)
Please note that there are very few situations where it is appropriate to use two different scales ...
Why does `True == False is False` evaluate to False? [duplicate]
...
From the docs:
x < y <= z is equivalent to x < y and y <= z, except that y is
evaluated only once (but in both cases z is not evaluated at all when
x < y is found to be false).
In your case True == Fa...
Android Fragments: When to use hide/show or add/remove/replace?
...ill be in the running state of its lifecycle, but its UI has been detached from the window so it's no longer visible. So you could technically still interact with the fragment and reattach its UI later you need to. If you replace the fragment, the you are actually pulling it out of the container a...