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What are the special dollar sign shell variables?
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1398
$1, $2, $3, ... are the positional parameters.
"$@" is an array-like construct of all positio...
How to change border color of textarea on :focus
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answered Apr 22 '13 at 21:03
adriftadrift
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Unique constraint that allows empty values in MySQL
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3 Answers
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Eclipse, regular expression search and replace
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answered Sep 3 '09 at 11:04
NomeNNomeN
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What is “lifting” in Scala?
...gt;
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[Boolean] = Some(false)
Methods
You can "lift" a method invocation into a function. This is called eta-expansion (thanks to Ben James for this). So for example:
scala> def times2(i: Int) = i * 2
times2: (i: In...
Fit cell width to content
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why you write <table style="width:100%"> instead of <table width="100%" >
– diEcho
Jun 29...
How do I raise a Response Forbidden in django
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30
Why does there exists an exception class Http404 but not Http403? Why the inconsistency?
– Flimm
Jan...
Why can I create a class named “var”?
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answered May 11 '12 at 9:43
Sam HolderSam Holder
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