obj.respond_to?(symbol, include_all=false) รข true or false
Instance Public methods
Returns true if obj responds to the given method.
Private and protected methods are included in the search only if the
optional second parameter evaluates to true.
If the method is not implemented, as Process.fork on Windows, File.lchmod on GNU/Linux, etc., false is returned.
If the method is not defined, respond_to_missing? method is
called and the result is returned.
Please login to continue.