Split a string to characters with split(separator:) in Swift

Overview

The split(separator:) method returns the longest possible sub-sequences of a collection. In this case, we want to use this method to split a string into an array of characters.

Syntax

This is the syntax for the split(separator:) method:

string.split(separator: separatorElement)

Parameters

separatorElement: This is the element that should be split upon.

Return value

The split method returns smaller sub-parts of the array that are obtained from the subject string.

Code example

// create some strings
let numbers = "1 2 3 4"
let alphabets = "a-b-c-d"
// split strings into characters
let numberCharacters = numbers.split(separator: " ")
let alphabetCharacters = alphabets.split(separator: "-")
// print results
print(numberCharacters)
print(alphabetCharacters)

Code explanation

  • Lines 2–3: We create two strings, numbers and strings.
  • Lines 6–7: We split the strings into characters.
  • Lines 10–11: We print the results to the console.

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