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petri foxx
336 Pointswhy you can not write todo.append("Debug App" , "Fix Bugs") ?
the correct answer is : var todo = ["Learn Swift", "Build App", "Deploy App"] todo.append("Debug App") todo.append("Fix Bugs") but why U can not answer this way
todo.append("Debug App", "Fix Bugs")
2 Answers
Faddah Wolf
12,811 Pointsit has to do with the way the member methods (function in a Data Type like "Array") take arguments. in this case, the Array method "append" can only take one argument, not two, as you ask about [todo.append("Debug App", "Fix Bugs") returns an error in the Xcode compiler or playground: ! Extra argument in call - meaning the call only expects one argument and doesn't know what to do when you give it two, as in your example].
you could do it this way:
todo.append("\"Debug App\", \"Fix Bugs\"")
^^^^ by using the \" escape references for the quote marks, this makes everything one string you are adding on, not two arguments.
i hope this makes it clear to you.
best,
ā faddah portland, oregon, u.s.a.
petri foxx
336 Pointsthx mate. now I have it clear that append command does NOT take 2 arguments! (even I think it should) maybe in next version!!!