Convert Date String to Int Swift

Question

I am trying to convert the string:

let time = "7:30"

to integers:

let hour : Int = 7
let minutes : Int = 30

I am currently looping through the string:

for char in time.characters {
}

But I cannot figure out how to convert a char to an int. Any help would be greatly appreciated.

mixel · Answer 1 · 2015-10-19T16:58:54.317

Use String.componentsSeparatedByString to split time string to parts:

import Foundation

let time = "7:30"
let timeParts = time.componentsSeparatedByString(":")

if timeParts.count == 2 {
    if let hour = Int(timeParts[0]),
        let minute = Int(timeParts[1]) {
            // use hour and minute
    }
}

If you do not want to import Foundation you can split time string to parts with:

let timeParts = time.characters.split(":").map(String.init)

score 5 · Accepted Answer · answered Oct 18 '15 at 21:02

5

Answers by @alex_p and @mixel are correct, but it's also possible to do it with Swift split function:

let time = "7:30"
let components = time.characters.split { $0 == ":" } .map { (x) -> Int in return Int(String(x))! }

let hours = components[0]
let minutes = components[1]

answered Oct 18 '15 at 21:02

egor.zhdan

4,555
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This seems to be the more "Swift-like" answer. – Nicolas Miari Oct 19 '15 at 04:25
This is what I ended up using. Thank you!! – brl214 Oct 19 '15 at 15:43
nice solution ! – Matrosov Oleksandr Sep 15 '16 at 15:53
Simple and elegant! I added let seconds = components[2] for my seconds needed in my project. – David_2877 Jul 13 '20 at 09:56

score 1 · Answer 3 · answered Oct 18 '15 at 19:59

1

You can split string by : character and then convert results to Int:

let timeStringArray = time.componentsSeparatedByString(":")
if timeStringArray.count == 2 {
   hour = timeStringArray[0].toInt
   minutes = timeStringArray[1].toInt()
}

answered Oct 18 '15 at 19:59

Alexey Pichukov

3,377
2
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Convert Date String to Int Swift

3 Answers3

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