Ruby: Learn something every day…
Possibly I’m the most experienced Rubyist to ever discover this, but
nonetheless it came as a suprise to me:
class C; end
c = C.new
c.instance_eval ‘def foo() 42 end’
c.instance_eval do
def bar() 42.0 end
end
p c.foo #=> 42
p c.bar #=> 42.0
c = C.new
c.instance_eval ‘def foo() 42 end’
c.instance_eval do
def bar() 42.0 end
end
p c.foo #=> 42
p c.bar #=> 42.0
I have been in the habit of using the singleton class for such tricks in the
past, but this is a nice shortcut.
