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What does the exclamation mark mean in a Haskell declaration?
... just what this means:
data Foo = Foo Int Int !Int !(Maybe Int)
f = Foo (2+2) (3+3) (4+4) (Just (5+5))
The function f above, when evaluated, will return a "thunk": that is, the code to execute to figure out its value. At that point, a Foo doesn't even exist yet, just the code.
But at some point...
How do I get logs/details of ansible-playbook module executions?
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edited Apr 3 '16 at 2:31
techraf
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ans...
How to replace a character with a newline in Emacs?
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itsjeyd
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answered Mar 4 '09 at 23:52
Jonathan ArkellJonatha...
Getting attributes of a class
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128
Try the inspect module. getmembers and the various tests should be helpful.
EDIT:
For example...
How to rethrow InnerException without losing stack trace in C#?
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answered Jun 13 '13 at 15:42
Paul TurnerPaul Turner
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How to put more than 1000 values into an Oracle IN clause [duplicate]
...Otávio DécioOtávio Décio
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7
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Remove duplicate lines without sorting [duplicate]
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281
The UNIX Bash Scripting blog suggests:
awk '!x[$0]++'
This command is telling awk which lin...
Android - Dynamically Add Views into View
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234
Use the LayoutInflater to create a view based on your layout template, and then inject it into...
How to implement Android Pull-to-Refresh
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324
Finally, Google released an official version of the pull-to-refresh library!
It is called Swi...