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iOS Swift Basics (retired) Collections Modifying an Array

Posted by beven nyamande
beven nyamande
9,575 Points

i dont know where am going wrong here todo.insert("Learn iOS",atIndex: 2)

arrays

arrays.swift 
var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append("Debug App")
todo.append("Fix Bugs")
//todo.removeAtIndex(2)
let item  = todo.removeAtIndex(2)
//item
todo.insert("Learn iOS", atIndex: 2)
//todo

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

the task states: Insert a new item titled "Learn iOS" at the second position in the todo array.

indexes start at 0. index 0 is the first item, index 1 is the second item, and index 2 is the third item etc etc.

so the second position is really index 1

var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append("Debug App")
todo.append("Fix Bugs")
let item  = todo.removeAtIndex(2)
todo.insert("Learn iOS", atIndex: 1)
beven nyamande
beven nyamande
9,575 Points

i want to insert it where i removed the other

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

the task states: Insert a new item titled "Learn iOS" at the second position in the todo array

so the second position is index 1. you need to insert at index 1.