Question
In Ruby, how is the concept of nothing represented? null none- This should not be selected zilch nada nil The expression used in an IF
In Ruby, how is the concept of "nothing" represented?
null
none- This should not be selected
zilch
nada
nil
The expression used in an IF statement can evaluate to which of the following types?
Integer
All of the above -This should not be selected.
Not quite. At least one of the above answers is incorrect.
Float
String
Boolean
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Directions In Databases 12th British National Conference On Databases Bncod 12 Guildford United Kingdom July 6 8 1994 Proceedings Lncs 826
Authors: David S. Bowers
1994th Edition
3540582355, 978-3540582359
