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iOS Swift Basics (retired) Collections Modifying an Array

Posted by dennis kneulman
dennis kneulman
Courses Plus Student 229 Points

var todo = ["Learn Swift", "Build App", "Deploy App"] todo.append("Debug App","Fix Bugs") What,s wrong in this code ?

I have type an append in but it say,s it,s a wrong assignment code.

What is wrong with it ?

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

2 Answers

Jhoan Arango
Jhoan Arango
14,575 Points
Jhoan Arango
Jhoan Arango
14,575 Points

Hello:

There are 2 ways you can append or add an item into your array.

First : “You can add a new item to the end of an array by calling the array’s append method”

This only allows you to add ONE item at a time

var todo = ["Learn Swift", "Build App", "Deploy App"]

todo.append("Debug App")
todo.append("Fix Bugs")

Second : “Alternatively, append an array of one or more compatible items with the addition assignment operator (+=):”

var todo = ["Learn Swift", "Build App", "Deploy App"]

todo += ["Debug App","Fix Bugs"]

both of these codes work for your challenge.

dennis kneulman
PLUS
dennis kneulman
Courses Plus Student 229 Points
dennis kneulman
dennis kneulman
Courses Plus Student 229 Points

Great ! thanks , this is a very clear answer...