???
?: The comparison operator == is distinct from the assignment operator = that is used to set a variable equal to a value.
(X) TRUE ( ) FALSE
?: Ruby will treat anything that is false or nil as "falsey"
(X) TRUE ( ) FALSE
?: What does REPL stand for?
(X) read–eval–print loop ( ) ruby-eval-print loop ( ) ruby-expression-print loop ( ) read-expression-print loop
?: puts "hello world” returns:
( ) hello world
( ) "hello world"
(X) nil
( ) None of the above.
?: Which symbols are used as the interpolation operator in Ruby?
( ) {}
(X) #{}
( ) ${}
( ) None of the above.
?: To escape double-quotes in a string, which symbol is used?
( ) ''
( ) /
(X) \
( ) None of the above.
?: To join a String in Ruby, which symbol is used?
(X) +
( ) ++
( ) #{}
( ) ''
?: A TypeError occurs when:
( ) You concatenate a Integer with an Integer
(X) You concatenate a String with an Integer
( ) You leave off the + symbol
( ) You use mixed double and single quotes in an expression.
?: Which symbol represents exponentiation in programming?
( ) ^
( ) ()
(X) **
( ) *
?: The expression below evaluates to:
3 + 6 * 2
( ) 18 (X) 15 ( ) 11 ( ) 39
???