Operator precedence of "and" and "or" 6

Posted by jeff Monday, April 17, 2006 18:59:00 GMT

Came across this helpful post from Duane in which he explains an important difference between the && and || operators from the nicer-looking “and” and “or” operators.

If you’re surprised by the last value of “z” in the session below, then make sure you read his post.

 irb(main):001:0> a = 5
 => 5
 irb(main):002:0> z = false || a
 => 5
 irb(main):003:0> z
 => 5
 irb(main):004:0> z = false or a
 => 5
 irb(main):005:0> z
 => false

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