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Maher Alhasan
974 PointsSyntax and Parameters
Modify the println statement within the greeting function to use the variable person. For example, if you pass a person named "Tom" to the function then it should display: Hello Tom. (Hint: you must use string interpolation).
func greeting(person: String) { println("Hello " + person + ".") }
greeting("Tom")
What's wrong with my answer?
5 Answers
Vittorio Somaschini
33,371 PointsHello Maher.
You are asked to use string interpolation here, not concatenation like you did.
So, after "println" you should use only one set of "", something like this:
("Hello (person)")
Also please note that the dot here is not requested in the string you want to print out
;)
Vittorio Somaschini
33,371 PointsYou should NOT have the greeting function call in step 2.
Try deleting greeting("Tom")
Maher Alhasan
974 Pointsgot them all correct, Vittorio. thanks a lot for your enormous help
Vittorio Somaschini
33,371 PointsSorry Maher, I got distracted while typing. The other thing that was needed is to add a backslash before the variable, to have it actually treated as a variable and not a string:
("Hello (person)")
Apologies for that.
Maher Alhasan
974 Pointsthanx still wrong func greeting(person: String) { println("Hello (person)") } greeting(Tom)
Vittorio Somaschini
33,371 PointsAre you at step 3/3 ?
When you call the function, the word Tom has to go between "", like this:
greeting("Tom")
Also, I have noticed that I had put the backslash also in my previous answers but the site hides them.
Make sure you have a backslash right before (person).
This should be good then. Let me know
Maher Alhasan
974 Pointsi am in step 2
Bummer! Your greeting printed "Hello Tom" when called with "XYZZY" as the parameter. It should have printed "Hello XYZZY".
func greeting(person: String){ println("Hello (person)") } greeting("Tom")
Yonesh Suwal
764 PointsMaher...this should work
func greeting(person:String) { println("Hello (person)") }
Maher Alhasan
974 PointsMaher Alhasan
974 PointsThanks Vittorio, but it turned out to another error: func greeting(person: String) { println("Hello (person)") } greeting(Tom)