Use method from String class to map a method from String to a method pointer : Method Pointer « Method « Ruby

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Ruby » Method » Method Pointer   Use method from String class to map a method from String to a method pointer str = "cat" meth = str.method(:length) a = meth.call               #  3  (length of "cat") str << "erpillar" b = meth.call               # 11  (length of "caterpillar") str = "dog" c = meth.call               # 11  (length of "caterpillar")   Related examples in the same category 1.  Call String.instance_method to get a method pointer 2.  Get pointer to a method in Fixnum 3.  Assign method pointer to another method

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