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backtrace method bang (!) methods, 2nd conventions and best practices examining for specific objects bang notation, when to use bare list bareword style basename method BasicObject class, 2nd instantiating BasicObject.new begin/end blocks with while keyword behavior, encapsulating in a module Bignum class bind method Binding class binding method binding method to object bitwise AND bit-wise operator BlankSlate class library block and proc interoperability block parameter, 2nd, 3rd, 4th block variable, flavors block_given? method block, testing for presence of boolean comparison test, on a range every object has true or false state expressing in a method objects objects (true and false) states values, only nil and false have false ...
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