On Mon, Feb 11, 2013 at 10:04 AM, Joel Pearson <[email protected]> wrote:
> Nice one Henry. As usual Ruby has more than one way to do everything :)
IMHO #tap is only called for in these situations
- The value to be tapped is the result of evaluating an expression
(and not already stored in a variable) AND
- It should be used as the result of the larger expression.
Typical example:
module Enumerable
def group_by
{}.tap do |groups|
each do |e|
(groups[yield(e)] ||= []) << e
end
end
end
end
In all other cases doing a simple assignment like
mo = my_object
mo = my.complicated.expression
is probably easier, cleaner and faster.
Kind regards
robert
--
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http://blog.rubybestpractices.com/
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