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Possible error in first example.
I think I found an error with your first example:
To access the first element, which would be ‘Diane’ you said:
var students = [‘Diane’, ‘Alicia’, ‘Frankie’, ‘Sam’]; alert( names );
Shouldn’t this be:
var students = [‘Diane’, ‘Alicia’, ‘Frankie’, ‘Sam’]; alert( students );
Because “names” is not defined? Correct me if I’m wrong, please.