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iOS Swift Collections and Control Flow Introduction to Collections Working With Arrays

Janet Tsang
Janet Tsang
1,253 Points
Posted by Janet Tsang
Janet Tsang
1,253 Points

i am wondering what did i type wrong? thanks

please have a look on my code.. thanks

array.swift 
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
arrayOfInts[4]
let value = arraysOfInts[4]
Janet Tsang
Janet Tsang
1,253 Points
Janet Tsang
Janet Tsang
1,253 Points

swift_lint.swift:7:12: error: expression resolves to an unused l-value arrayOfInts[4]

what does that mean

2 Answers

Manish Giri
Manish Giri
16,266 Points
Manish Giri
Manish Giri
16,266 Points

Try removing this line - arrayOfInts[4], since you're assigning the value on the next line - let value = arrayOfInts[4], so something like - 

var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
let value = arraysOfInts[4]
Manish Giri
Manish Giri
16,266 Points
Manish Giri
Manish Giri
16,266 Points

You've got a typo in this line - 

let value = arraysOfInts[4]

The array is named arrayOfInts.

Janet Tsang
Janet Tsang
1,253 Points
Janet Tsang
Janet Tsang
1,253 Points

i corrected this but still it doesnt work