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How to find all positions of the maximum value in a list?
...>>> a = [3,2,1, 4,5]
Using the generator enumerate and making a casting
>>> list(enumerate(a))
[(0, 3), (1, 2), (2, 1), (3, 4), (4, 5)]
At this point, we can extract the position of max with
>>> max(enumerate(a), key=(lambda x: x[1]))
(4, 5)
The above tells us, th...
Why is Swift compile time so slow?
..., you can determine with high accuracy whether your refactorings (explicit casts, type hints, etc...) are lowering compile times for specific files or not.
NOTE: technically you could also do it with xcodebuild but the output is incredibly verbose and hard to consume.
...
PHP - Merging two arrays into one array (also Remove Duplicates)
...hird argument. If it is not a string, or the contents cannot be implicitly cast to a string, you will need the SORT_REGULAR argument.
– David Baucum
Aug 19 '16 at 19:33
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How to convert a String to its equivalent LINQ Expression Tree?
...
{
var invokedExpr = Expression.Invoke(expr2, expr1.Parameters.Cast<Expression>());
return Expression.Lambda<Func<T, TResult>>(Expression.AndAlso(expr1.Body, invokedExpr), expr1.Parameters);
}
public static Func<T, TResult> ExpressionToFunc<T, ...
git-diff to ignore ^M
...ts that you should make sure to only use \n as a newline character in git-handled repos. There's an option to auto-convert:
$ git config --global core.autocrlf true
Of course, this is said to convert crlf to lf, while you want to convert cr to lf. I hope this still works …
And then convert you...
Reading GHC Core
...eful. You can also use -dsuppress-coercions if you only want to get rid of casts (useful when there are lots of newtypes around).
– tibbe
May 26 '11 at 18:39
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How do I choose between Semaphore and SemaphoreSlim?
... documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaphore and vice versa?
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How does the ThreadStatic attribute work?
...IL level, in the .NET jit compiler. Compilers that emit to IL like VB.NET and C# don't need to know anything about Win32 TLS in order to emit IL code that can read and write a variable that has the ThreadStatic attribute. There's nothing special about the variable as far as C# knows - it's just a ...
structure vs class in swift language
... provide access to their variables
Only class can do:
Inheritance
Type casting
Define deinitialisers
Allow reference counting for multiple references.
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make arrayList.toArray() return more specific types
...lass[myList.size()])?
If your list is not properly typed you need to do a cast before calling toArray. Like this:
List l = new ArrayList<String>();
String[] a = ((List<String>)l).toArray(new String[l.size()]);
...