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What does the `forall` keyword in Haskell/GHC do?
...'m beginning to understand how the forall keyword is used in so-called "existential types" like this:
8 Answers
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How do you simulate Mouse Click in C#?
...ns
{
[Flags]
public enum MouseEventFlags
{
LeftDown = 0x00000002,
LeftUp = 0x00000004,
MiddleDown = 0x00000020,
MiddleUp = 0x00000040,
Move = 0x00000001,
Absolute = 0x00008000,
RightDown = 0x00000008,
RightUp = 0x00000010
...
How to show all shared libraries used by executables in Linux?
I'd like to know which libraries are used by executables on my system. More specifically, I'd like to rank which libraries are used the most, along with the binaries that use them. How can I do this?
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How to find all duplicate from a List? [duplicate]
...to get back down to a single enumerable:
var duplicateKeys = list.GroupBy(x => x)
.Where(group => group.Count() > 1)
.Select(group => group.Key);
share
|...
How to check a not-defined variable in JavaScript
I wanted to check whether the variable is defined or not. For example, the following throws a not-defined error
14 Answer...
How to Concatenate Numbers and Strings to Format Numbers in T-SQL?
...obably make it a lot more readable
Now onto the problem...
You need to explicitly convert your parameters to VARCHAR before trying to concatenate them. When SQL Server sees @my_int + 'X' it thinks you're trying to add the number "X" to @my_int and it can't do that. Instead try:
SET @ActualWeight...
Cocoa: What's the difference between the frame and the bounds?
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The bounds of an UIView is the rectangle, expressed as a location (x,y) and size (width,height) relative to its own coordinate system (0,0).
The frame of an UIView is the rectangle, expressed as a location (x,y) and size (width,height) relative to the superview it is...
What are the basic rules and idioms for operator overloading?
...s according to votes, rather than the time they were given, here's an index of the answers in the order in which they make most sense:
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Error: “Cannot modify the return value” c#
I'm using auto-implemented properties.
I guess the fastest way to fix following is to declare my own backing variable?
8 A...
How to get indices of a sorted array in Python
...
Something like next:
>>> myList = [1, 2, 3, 100, 5]
>>> [i[0] for i in sorted(enumerate(myList), key=lambda x:x[1])]
[0, 1, 2, 4, 3]
enumerate(myList) gives you a list containing tuples of (index, value):
[(0, 1), (1, 2)...