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

SONU PRABHAKAR
SONU PRABHAKAR
2,039 Points
Posted by SONU PRABHAKAR
SONU PRABHAKAR
2,039 Points

Kindly find my mistakes.

Its showing correct on xcode playground but not at this place. why?

arrays.swift 
// Enter your code below
var arrayOfInts: [Int] = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
let result = arrayOfInts[5]
// where i am doing wrong in retriving 5th item? Kindly help me.

1 Answer

jcorum
jcorum
71,816 Points
jcorum
jcorum
71,816 Points

Only two:

// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
let value = arrayOfInts[4]

The first error is that the editor asked you to name the constant value, not result. The second is that the 5th item in the array has the index of 4, not 5, as array indexes are zero-based, i.e., start with 0, not 1.