[Talking-Ruby] Operator precedence of ||, or, && and

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Operator precedence of ||, or, && and

It’s a matter of operator precedence.

|| has a higher precedence than or.

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a = false || true  #=> true
a  #=> true

a = false or true  #=> true
a  #=> false

# with ()
a = (false or true)  #=> true
a  #=> true

&& has a higher precedence than and.

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a = :foo and nil
# => nil
a
# => :foo

a = :foo && nil
# => nil
a
# => nil

# with ()
a = (:foo and nil)
# => nil
a
# => nil

References

[1] operators - Difference between “or” and || in Ruby? - Stack Overflow - https://stackoverflow.com/questions/2083112/difference-between-or-and-in-ruby

[2] operators - Difference between “and” and && in Ruby? - Stack Overflow - https://stackoverflow.com/questions/1426826/difference-between-and-and-in-ruby

[3] Operator precedence in Ruby - https://womanonrails.com/operator-precedence-ruby