Ruby%20On%20Rails%20Interview%20Questions%20and%20Answers
Question: What is the difference between ‘&&’, ‘AND’ and ‘&’ operators?Answer:The ‘&&’ and ‘and’ are both logical and statements. They ‘&&’ operator has higher precedence though. Here’s an example of illustrate this in more detail: foo = 3 bar = nil a = foo and bar # => nil a # => 3 a = foo && bar # => nil a # => nil Notice how the statement ‘a = foo and bar’ actually behaves like ‘(a = foo) and bar’ |
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