A Swift extension on String to compute Levenshtein distance between words.
Copy the String+Levenshtein.swift file into your project.
To retrieve the Levenshtein distance between two words, simply call the levenshteinDistance method on one word with the other.
Example:
let firstWord: String = "Hello"
let secondWord: String = "Help"
let levenshteinDistance: Int = firstWord.levenshteinDistance(with: secondWord)
print(levenshteinDistance) // Prints "2"
Have a look to the sample project to see how this extension can be use to display a "Did you mean?" hint to users in search results.