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Get list of a class' instance methods
...do.
class TestClass
def method1
end
def method2
end
def method3
end
end
TestClass.methods.grep(/method1/) # => []
TestClass.instance_methods.grep(/method1/) # => ["method1"]
TestClass.methods.grep(/new/) # => ["new"]
Or you can call methods (not instance_methods) on the ob...
Fast Linux File Count for a large number of files
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answered Sep 15 '09 at 13:55
mark4omark4o
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SQL update query using joins
I have to update a field with a value which is returned by a join of 3 tables.
11 Answers
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In .NET, which loop runs faster, 'for' or 'foreach'?
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TylerH
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answered Jan 23 '09 at 8:26
Jon SkeetJon Skeet
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Read binary file as string in Ruby
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answered Dec 30 '10 at 18:21
AlexAlex
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How to make PowerShell tab completion work like Bash
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21
It is now possible to get PowerShell to do Bash-style completion, using PSReadline.
Check out...
How do I get the current line number?
...hanks Marc!
– nmit026
Mar 20 '17 at 21:37
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Convert char to int in C#
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Vadim Ovchinnikov
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answered Apr 28 '09 at 2:20
Chad GrantChad Grant
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Difference between map and collect in Ruby?
...s well: In C++'s Standard Template Library, it is called transform, in C# (3.0)'s LINQ library, it is provided as an extension method called Select. Map is also a frequently used operation in high level languages such as Perl, Python and Ruby; the operation is called map in all three of these langua...