how to initialize array in swift

Question

I am completely new in swift and iOS developing. I want to initialize this array

I defined the array like this when my class starts

 var i = 0
 var ArrayTitle = [NSString]()

and then I need to initialize it in one of the functions like this

 let ArrayTitl[i] = "text"

and I checked it even like this but the error is same

let ArrayTitl[0] = "text"

but it has this Error Cannot assign to immutable expression of type '[Int]'

Appreciate any help. thanks

Welcome to Swift! Start off by reading the language guide. It will explain basics such as this. 👍 — Dennis Vennink
– Dennis Vennink, Commented Oct 4, 2017 at 20:02
Also, you wouldn't ever use "let" in this way. Let is used to define a variable - which MAY include an assignment but doesn't have to. But, once it is defined (as your array is), you wouldn't use a let. — Mark Brittingham
– Mark Brittingham, Commented Oct 20, 2022 at 18:14

Charles-olivier Demers · Accepted Answer · 2017-10-04 20:05:02Z

13

You are using a dynamic array so you need to append the value.

Here's a small exemple:

var arrayTitle = [String]()

arrayTitle.append("text")

print(arrayTitle[0]);

answered Oct 4, 2017 at 20:01

1,0489 silver badges26 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Do not suggest NSString and variable names starting with capital letters in Swift by keeping the bad habits

I just copied the code above, but yes, I will correct it!