How to redefine != method?

ruby-talk
1

Hi, I can redefine == method by doing:

  def ==(string)

but it gives me an error if I try:

  def !=(string)

···

-----------
SyntaxError: compile error
(irb):2: syntax error, unexpected tNEQ
def !=(string); "hello" ; end
      ^
(irb):2: syntax error, unexpected kEND, expecting $end
        from (irb):2
----------

How could I solve it?

Thanks a lot.

--
Iñaki Baz Castillo

2

!= is simply a negated call to ==, so defining == also changes the definition of !=.

Regards

Dave Thomas

···

On Aug 10, 2008, at 6:53 PM, Iñaki Baz Castillo wrote:

Hi, I can redefine == method by doing:

  def ==(string)

but it gives me an error if I try:

  def !=(string)

3

Great to know, thanks a lot.

···

El Lunes, 11 de Agosto de 2008, Dave Thomas escribió:

On Aug 10, 2008, at 6:53 PM, Iñaki Baz Castillo wrote:
> Hi, I can redefine == method by doing:
>
> def ==(string)
>
> but it gives me an error if I try:
>
> def !=(string)

!= is simply a negated call to ==, so defining == also changes the
definition of !=.

--
Iñaki Baz Castillo