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iOS Swift Basics (retired) Operators Binary Operators

Posted by oktay asci
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points

I get an error message when I typ let areaInMeters = area / 10.764

Hi, I get an error message when I type let areaInMeters = area / 10.764

oktay asci
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points

// Playground - noun: a place where people can play

import UIKit

var x = 1 + 2
let height = 12 // In Feet
let width = 10 // In Feet

let area = height * width

//  1 sq. meter = 1 sq. foot / 10.764
let areaInMeters = area / 10.764

4 Answers

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Oh, right, that one, you have to do this

let areaInMeters = Double(area) / 10.764

Yeah, I know Amit Bijlani wrote it like this let areaInMeters = area / 10.764 during the video and Playground doesn't seem complaining. I don't have a answer as to why, but consider how new the Swift language is, maybe Apple implemented some new changes to the Swift on the newer version of Xcode.

Matthew Litherland
Matthew Litherland
1,752 Points
Matthew Litherland
Matthew Litherland
1,752 Points

I suggest this:

let height = 12.0 // Feet
let width  = 10.0 // Feet

let area = height * width
let areaInMeters = area / 10.764

But you can also produce the same result using this:

let height = 12 // Feet
let width  = 10 // Feet

let area = height * width
let areaInMeters = Double(area) / 10.764
oktay asci
seal-mask
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points
oktay asci
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points

Hi, I have checked again my codes. And I saw that I have wrote 12 instead of writing 12.0 .....

oktay asci
seal-mask
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points
oktay asci
.a{fill-rule:evenodd;}techdegree
oktay asci
Front End Web Development Techdegree Student 1,278 Points

Thanks William for Help.