Swift reverse a string word by word

Swift Reverse a String Word by Word

Reversing a string word by word in Swift involves splitting the string into its individual words, reversing their order, and then joining them back into a single string. This technique is useful for manipulating sentences or phrases while preserving the integrity of each word.

Code

let original = "Swift reverse a string word by word"

// Split the string into words using whitespace as the separator
let words = original.split(separator: " ")

// Reverse the array of words
let reversedWords = words.reversed()

// Join the reversed words back into a single string with spaces
let reversedString = reversedWords.joined(separator: " ")

print(reversedString)  // Output: "word by word string a reverse Swift"

Key Points

• Use the split(separator:) method to divide a string into words based on spaces.
• The reversed() method returns a reversed collection of the words without modifying the original array.
• Join the reversed words with joined(separator:) to reconstruct the sentence.
• This approach preserves each word's characters while changing their order.