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Scala: Nil vs List()
...println (Nil equals List())
true
scala> System.identityHashCode(Nil)
374527572
scala> System.identityHashCode(List())
374527572
Nil is more idiomatic and can be preferred in most cases.
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What's the difference between := and = in Makefile?
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answered Feb 2 '11 at 20:40
Greg HewgillGreg Hewgill
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How to make execution pause, sleep, wait for X seconds in R?
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145
See help(Sys.sleep).
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Louis WassermanLouis Wasserman
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Current executing procedure name
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146
You may try this:
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Dinei
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answered Mar 22 '10 at 2:40
KnuKnu
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How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
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By default, all your db queries will be logged already in test mode. They'll be in log/test.log....
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basaratbasarat
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JsonMappingException: out of START_ARRAY token
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