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thanks. I've been writing Ruby for a few years now and I never knew about sort_by. Looks like is works in 1.8 too, but without the &: syntax sort_by{|g|g.i
by cubicle67 15y ago
thanks. I've been writing Ruby for a few years now and I never knew about sort_by. Looks like is works in 1.8 too, but without the &: syntax
sort_by{|g|g.irrelevance}
source: http://www.ruby-doc.org/core-1.9.2/Enumerable.html#method-i-sort http://www.ruby-doc.org/core-1.9.2/Enumerable.html#method-i-...
- jeltz 15y agoI actually believe the &:symbol syntax was added in 1.8.7 since I am 100% positive we use that in our codebase which still has not been ported to 1.9. $ ruby -e 'puts VERSION; p ["10", "2", "3"].sort_by(&:to_i)' 1.8.7 ["2", "3", "10"]
- koenigdavidmj 15y agoRails adds it too, even if your version of Ruby does not support it. Yay monkeypatching! EDIT: said duck typing first. It's too early for thinking.