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iOS Swift Basics (retired) Collections What is an Array?

Posted by Umar Magid
Umar Magid
181 Points

Println I kinda of forgot

Plzz help with the print ln thanks

arrays.swift 
var todo: [String] = ["Learn Swift","Build App","Deploy App"]

println [todo Count]
Meek D
Meek D
3,457 Points

what do you want to print out to the console ?

2 Answers

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

Hey there,

Three small issues here:

  1. println is a function, which requires parentheses, not square brackets to call
  2. In Swift, you'll want to use dot notation to get a property of an object (like the length of an array)
  3. Finally, the count property of an array is lowercase

Here's how you'd write it:

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

println(todo.count)
Umar Magid
Umar Magid
181 Points

Thanks alot man

Unsubscribed User
Unsubscribed User
11,496 Points
Unsubscribed User
Unsubscribed User
11,496 Points

It looks like you want to print the number of items in todo, correct? The string interpolation syntax looks like this:

println("\(todo.count)")
Umar Magid
Umar Magid
181 Points

Thanks!