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Static Indexers?
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71
Indexer notation requires a reference to this. Since static methods don't have a reference to an...
How do I initialize the base (super) class?
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150
Python (until version 3) supports "old-style" and new-style classes. New-style classes are der...
What does “all” stand for in a makefile?
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117
A build, as Makefile understands it, consists of a lot of targets. For example, to build a pr...
What generates the “text file busy” message in Unix?
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12 Answers
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How do I convert an HttpRequestBase into an HttpRequest object?
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edited Sep 21 '09 at 1:54
answered Sep 21 '09 at 1:44
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Graphviz: How to go from .dot to a graph?
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11 Answers
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How do I set up email confirmation with Devise?
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1. Make sure you include confirmable in Model.devise call
class User < ActiveRecord::Base
devise :database_authenticatable, :confirmable ...
end
2. Make sure you add confirmable to the user migration
create_table :us...
How to trim leading and trailing white spaces of a string?
... := strings.TrimSpace(s)
fmt.Printf("%d %q\n", len(t), t)
}
Output:
16 "\t Hello, World\n "
12 "Hello, World"
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Do Java arrays have a maximum size?
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188
Haven't seen the right answer, even though it's very easy to test.
In a recent HotSpot VM, th...
Search and replace in bash using regular expressions
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Use sed:
MYVAR=ho02123ware38384you443d34o3434ingtod38384day
echo "$MYVAR" | sed -e 's/[a-zA-Z...