15 lines
472 B
Ruby
15 lines
472 B
Ruby
unless :to_proc.respond_to?(:to_proc)
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class Symbol
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# Turns the symbol into a simple proc, which is especially useful for enumerations. Examples:
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#
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# # The same as people.collect { |p| p.name }
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# people.collect(&:name)
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#
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# # The same as people.select { |p| p.manager? }.collect { |p| p.salary }
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# people.select(&:manager?).collect(&:salary)
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def to_proc
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Proc.new { |*args| args.shift.__send__(self, *args) }
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end
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end
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end
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