Revisions to Leading zeros for Int in Swift

deleted 1 character in body

edited Aug 1, 2023 at 12:53

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Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1 ... 3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. ForFor instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1 ... 3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1 ... 3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Update to latest Swift code style conventions.

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edited May 2, 2019 at 14:57

Cihat Gündüz

21.7k
8
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84

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1 ... 3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1...3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1 ... 3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Rollback to Revision 6

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edited Jan 24, 2019 at 22:39

vacawama

155.1k
32
283
315

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for numbermyInt in 1...3 { print(String(format: "%02d", numbermyInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for number in 1...3 { print(String(format: "%02d", number)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation for myInt in 1...3 { print(String(format: "%02d", myInt)) }

output:

01 02 03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3 let minutes = 15 let seconds = 7 print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

added 2 characters in body

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edited Jan 24, 2019 at 22:34

Rudolf Adamkovič

31.5k
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Updated with a second example with a more complicated format string.

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edited Feb 25, 2018 at 20:04

vacawama

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added 187 characters in body

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edited Jul 14, 2016 at 14:03

vacawama

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println is now print

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edited Mar 30, 2016 at 0:44

vacawama

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deleted 258 characters in body

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edited Aug 29, 2014 at 14:11

vacawama

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added 131 characters in body

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edited Aug 29, 2014 at 11:16

vacawama

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answered Aug 29, 2014 at 10:54

vacawama

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