lucashaley
Eloquent Ruby, Second Edition: safe navigation explanation (page 44)
It would be excellent to have a little more explanation about why the code returns false for the last example in the section: docs&.first&.words&.first&.reverse.
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russolsen
Author of Getting Clojure, Eloquent Ruby, Design Patterns in Ruby
Good catch!
I accidentally pulled in the wrong code example here. The correct bit of code is:
(1 == 0)&.to_s
Since 1 == 0 is false and false is not nil, we get “false”.
Thanks!
R
1
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