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How to find all occurrences of an element in a list?
index() will just give the first occurrence of an item in a list. Is there a neat trick which returns all indices in a list for an element?
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Large Object Heap Fragmentation
...ernal structure used for interned strings. Please check my answer for this question for more details: stackoverflow.com/questions/372547/…
– Brian Rasmussen
Mar 27 '09 at 10:03
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Does the join order matter in SQL?
...right.
The optimizer chooses the optimal join order as well as the optimal index for each table. The join order can affect which index is the best choice. The optimizer can choose an index as the access path for a table if it is the inner table, but not if it is the outer table (and there are no fur...
What's a quick way to comment/uncomment lines in Vim?
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I think that it isn't the quickest way to do it with vim since it requires to install a plugin. Also the best answer has already received more votes but it hasn't been marked as solution.
– whirmill
Jul 10 '18 a...
How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?
... use Task-based wrapper which is only asynchronous.
And thank you for you question. I was good starting point for me :)
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What is the difference between HashSet and List?
...eLine(hashSet1[i]);
hashSet1[i] would produce an error:
Cannot apply indexing with [] to an expression of type
'System.Collections.Generic.HashSet'
You can use foreach statement:
foreach (var item in hashSet1)
Console.WriteLine(item);
You can not add duplicated items to HashSet wh...
What is the difference between git am and git apply?
... (e.g. the output of git diff) and applies it to the working directory (or index, if --index or --cached is used).
git am takes a mailbox of commits formatted as an email messages (e.g. the output of git format-patch) and applies them to the current branch.
git am uses git apply behind the scenes,...
C++ templates Turing-complete?
..., int N, typename = void>
struct GetItem {
static_assert(N > 0, "index cannot be negative");
static_assert(GetSize<List>::value > 0, "index too high");
typedef typename GetItem<typename List::tail, N-1>::type type;
};
template<typename List>
struct GetItem<...
Why there is no ForEach extension method on IEnumerable?
...e ForEach<> extension to be a little nicer than having to manage the index in a regular foreach myself:
public static int ForEach<T>(this IEnumerable<T> list, Action<int, T> action)
{
if (action == null) throw new ArgumentNullException("action");
var index = 0;
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Git: Ignore tracked files
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Sure.
git update-index --assume-unchanged [<file> ...]
To undo and start tracking again:
git update-index --no-assume-unchanged [<file> ...]
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