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What does the exclamation mark mean in a Haskell declaration?
...his 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 someone may...
What does “Mass Assignment” mean in Laravel?
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What is __main__.py?
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edited Nov 15 '18 at 23:34
user2357112 supports Monica
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Android: What's the difference between Activity.runOnUiThread and View.post?
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Why are my JavaScript function names clashing?
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Wilfred Hughes
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answered May 27 '14 at 12:24
Benjamin Gr...
omp parallel vs. omp parallel for
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edited Jul 3 '18 at 8:44
Grv10India
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answered Sep 30 '09 at 20:20
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What's the difference between == and .equals in Scala?
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You normally use ==, it routes to equals, except that it treats nulls properly. Reference equali...
Non-CRUD operations in a RESTful service
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Is it safe to remove selected keys from map within a range loop?
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HashSet versus Dictionary w.r.t searching time to find if an item exists
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edited Apr 4 '14 at 12:55
Bernhard Barker
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