Ruby On Rails Interview Questions and Answers
Ques. What is the difference between ‘&&’, ‘AND’ and ‘&’ operators?Ans.
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’
Is it helpful? Yes No
Most helpful rated by users: