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iOS Swift Basics (retired) Collections Modifying an Array

Pierre Robert
Pierre Robert
5,717 Points
Posted by Pierre Robert
Pierre Robert
5,717 Points

todo.append("Debug App", "Fix Bugs") could not be compiled

I was asked to append 2 elements, and I feel I have followed instructions OK. But I get an error.

arrays.swift 
var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append("Debug App", "Fix Bugs")

2 Answers

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Pierre,

The append function takes a single string as an argument. If you wish to add multiple strings, you need to add an array. You can either use the += operator for this, or you can use the extend function, both with arrays:

options.swift 
todo.extend(["Debug App", "Fix Bugs"])
// OR
todo += ["Debug App", "Fix Bugs"]

Let me know if that makes sense!

Best,

-Greg

Pierre Robert
Pierre Robert
5,717 Points
Pierre Robert
Pierre Robert
5,717 Points

Thank you, Greg! Your second solution worked perfectly.

Best, Pierre