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iOS Swift Basics (retired) Collections Modifying an Array

Osiris Maldonado
Osiris Maldonado
699 Points
Posted by Osiris Maldonado
Osiris Maldonado
699 Points

Can an array of items be added with the .append function?

I know that an array of new items can be appended using the +=

todo += ["Additional Stuff", "More Stuff"]

But can an array be added using .append? or can .append achieve just single elements?

Thanks in advance!

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

The .append call is expecting a single element. If you have an array of strings and try to .append another array of strings you'll get, '[String]' is not convertible to String

Osiris Maldonado
Osiris Maldonado
699 Points
Osiris Maldonado
Osiris Maldonado
699 Points

Ok, I see, so .append is only useful for adding single elements. I assume that to add multiple elements, the best bet is to use '+=' ?

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

I guess so, yes. Or you could use a for loop to iterate through the second array and append each element one by one, perhaps?