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iOS Swift Basics (retired) Collections Modifying an Array

Posted by Marquett Burton
Marquett Burton
511 Points

if item in array is removed, how can that item then be defined in the following line as it shouldn't exist?

It seems to me that it should be impossible to call an item that was previously deleted unless we are referring to the new item that takes its place in the array.

arrays.swift 
var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append ("Debug App")
todo.append ("Fix Bugs") 
todo.removeAtIndex (4) 
let item = 4

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

You have to do it in one line; also, your index isn't correct.

let item = todo.removeAtIndex(2)

This way, you remove the 3rd item "Deploy App" from the list and assign it to a constant item.

Marquett Burton
Marquett Burton
511 Points

Many thanks! Very helpful