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Is R's apply family more than syntactic sugar?
...e exception to this is lapply which can be a little faster because it does more work in C code than in R (see this question for an example of this).
But in general, the rule is that you should use an apply function for clarity, not for performance.
I would add to this that apply functions have...
What does do?
...ble tag on your site? with the changes Microsoft has made to its browsers (more on those below).
Depending upon what Microsoft browsers you support you may not need to continue using the X-UA-Compatible tag. If you need to support IE9 or IE8, then I would recommend using the tag. If you only suppor...
PHP: How to use array_filter() to filter array keys?
...
I'm curious if this is more efficient than my solution though? It's definitely more elegant :)
– GWW
Nov 23 '10 at 19:48
13
...
How does lock work exactly?
...f (lockWasTaken)
{
Monitor.Exit(temp);
}
}
You can find more info about what Monitor.Enter does here. To quote MSDN:
Use Enter to acquire the Monitor on
the object passed as the parameter. If
another thread has executed an Enter
on the object but has not yet executed
t...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
... map in BitSet she got:
map(f: Int => Int): BitSet (click here for more general type)
The docs would not lie in that case, because from a user perspective indeed map has the type (Int => Int) => BitSet. But map also has a more general type which can be inspected by clicking on anothe...
Check if element exists in jQuery [duplicate]
... JS" which is nothing but JavaScript itself. @trejder should read a little more carefully.
– LasagnaAndroid
Mar 4 '14 at 21:47
3
...
Why does one use dependency injection?
..., IEnumerable or IPrintable. A class is an actual implementation of one or more of these interfaces: List or Map may both be implementations of IEnumerable.
To get the point: Often your classes depend on each other. E.g. you could have a Database class which accesses your database (hah, surprise! ;...
Most efficient way to prepend a value to an array
...ming I have an array that has a size of N (where N > 0 ), is there a more efficient way of prepending to the array that would not require O(N + 1) steps?
...
StringBuilder vs String concatenation in toString() in Java
...in fact turn it into version 2 - no performance difference whatsoever.
More importantly given we have only 3
properties it might not make a
difference, but at what point do you
switch from concat to builder?
At the point where you're concatenating in a loop - that's usually when the comp...
Changing default shell in Linux [closed]
...wered Oct 24 '12 at 9:21
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