是真的&& true == false？

Question

我错过了什么或者这是红宝石中的错误吗？

a = %w(foo bar baz)
a.include? "foo"                # => true
a.size == 3                     # => true
a.include? "foo" && a.size == 3 # => false 

Answer 1

a.include? "foo" && a.size == 3

被评估为

a.include? ("foo" && a.size == 3)

因为

"foo" && a.size == 3  #=> true

这相当于

a.include? true

是的 false