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iOS Swift 2.0 Basics Swift Operators Working With Operators: Part 2

sub kumar
PLUS
sub kumar
Courses Plus Student 661 Points
Posted by sub kumar
sub kumar
Courses Plus Student 661 Points

Should the increment operator be at the end. So shouldn't it be let totalScore=initialScore++

Should the increment operator be at the end. So shouldn't it be let totalScore=initialScore++

the answer returns as incorrect for some reason

operators2.swift 
// Enter your code below

var initialScore = 8

1 Answer

Damien Watson
Damien Watson
27,419 Points
Damien Watson
Damien Watson
27,419 Points

Hi, the challenge asks that 'totalScore' be set to the same as 'initialScore'. If you put the increment at the end, it is added after the assignment, putting it in front increments before assigning.

If you break it down, it is like this:

var initialScore = 8

let totalScore = initialScore++   // totalScore = initialScore, then add 1 to initialScore
// totalScore = 8
// initialScore = 9

let totalScore = ++initialScore   // totalScore = (add 1 to initialScore)
// totalScore = 9
// initialScore = 9
sub kumar
sub kumar
Courses Plus Student 661 Points
sub kumar
sub kumar
Courses Plus Student 661 Points

ahh yes that makes sense. Great thank you :)