How to Sort Characters in String in Swift - Step by Step Examples



How to Sort Characters in String in Swift ?

Answer

In Swift, you can sort characters in a string by converting the string to an array of characters, sorting the array, and then converting it back to a string.



✐ Examples

1 Sort Characters in Ascending Order

In this example,

  1. We create a string named str.
  2. We convert the string to an array of characters using Array(str) constructor.
  3. We sort the array of characters in ascending order using sort() method.
  4. We join the sorted array of characters back into a string using joined() method.
  5. Finally, we print the sorted string in ascending order.

Swift Program

let str = "hello world"
let sortedStr = String(Array(str).sorted())
print("Sorted string in ascending order: \(sortedStr)")

Output

Sorted string in ascending order:  dehllloorw

2 Sort Characters in Descending Order

In this example,

  1. We create a string named str.
  2. We convert the string to an array of characters using Array(str) constructor.
  3. We sort the array of characters in descending order using sort() method with a custom comparator.
  4. We join the sorted array of characters back into a string using joined() method.
  5. Finally, we print the sorted string in descending order.

Swift Program

let str = "hello world"
let sortedStr = String(Array(str).sorted(by: >))
print("Sorted string in descending order: \(sortedStr)")

Output

Sorted string in descending order: wroolllhed

Summary

In this tutorial, we learned How to Sort Characters in String in Swift language with well detailed examples.




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