0 is true too. I think that's actually brilliant. [1,2,3].index(1) # => 0 [1... | Hacker News

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xentronium on June 5, 2012 | parent | context | favorite | on: New to Ruby? Tips for the new Rubyist.

0 is true too. I think that's actually brilliant.

    [1,2,3].index(1)
    # => 0
    [1,2,3].index(4)
    # => nil

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