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iOS Swift 2.0 Collections and Control Flow Introduction to Collections Working with Arrays

Posted by Kevin Sanchez
Kevin Sanchez
484 Points

adding Arrays

I'm having a bit of a tough time on the arrays some tips Is much appreciated

arrays.swift 
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
todo.append

2 Answers

Anish Walawalkar
Anish Walawalkar
8,534 Points
Anish Walawalkar
Anish Walawalkar
8,534 Points

You're almost there. There are two ways in which you can add an element to an array (not of fixed size):

  1. using the apend(value) function. e.g. name.append("John")
  2. you can also just directly append to an array using the + operator. e.g. names += ["John"]

so in code:

// Enter your code below
var arrayOfInts: [Int] = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points
Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points

Hello, incase you are still looking for the answer:

//You did array declation right
var arrayOfInts = [1,2,3,4,5,6]

//To append a vlaue into an array, use the following syntax as mentioned by Anish
arrayOfInts.append(7)

//You can also add a value to an array by concatenating the array with another array
arrayOfInts += [8]

//We refer a specific value in an array by their index number.
let value = arrayOfInts[4]

//And finally, we use the removeAtIndex() method to delete a value from an array, again refer to that value by its index number
let discardedValue = arrayOfInts.removeAtIndex(5)