Rexml: how to get element type?

ruby-talk
12

Mark Hubbart wrote:

(obj.methods - Object.new.methods).sort

I added that to my .irbrc file defined as Object#less_methods.

You can use Object.instance_methods instead, since

Object.instance_methods == Object.new.methods

Maybe this would be convenient:

class Object
def less_methods(cl=Object)
methods - cl.instance_methods
end
end

Great idea :slight_smile: a quick hack now has turned into something better:

class Object
def less_methods(klass = Object)
(methods - klass.instance_methods).sort
end
end
class Class
def less_methods(klass = Class)
(methods - klass.methods).sort
end
end
class Module
def less_methods
(methods - Module.methods).sort
end
end

cheers,
–Mark

···

On Apr 25, 2004, at 12:06 PM, Joel VanderWerf wrote:

3.less_methods(Numeric)

=>[“%”, “<<”, “>>”, “prec_i”, “&”, “to_sym”, “*”, “+”, “times”,

“-”, “prec_f”, “/”, “upto”, “|”, “~”, “chr”, “to_i”, “succ”, “^”,
“**”, “to_f”, “prec”, “size”, “next”, “id2name”, “”, “downto”]