ios - Disallow words less than 3 characters -

in swift code below, user chooses word , types text box, how disallow words entered if less 3 characters in length?

func isreal (word: string) -> bool {         //return true         let checker = uitextchecker()         let range = nsmakerange(0, word.utf16.count)         let misspelledrange = checker.rangeofmisspelledword(in: word, range: range, startingat: 0, wrap: false, language: "en")         return misspelledrange.location == nsnotfound 

you can add if check if word has more 3 characters:

func isreal (word: string) -> bool {     if word.characters.count >= 3 {         //return true         let checker = uitextchecker()         let range = nsmakerange(0, word.utf16.count)         let misspelledrange = checker.rangeofmisspelledword(in: word, range: range, startingat: 0, wrap: false, language: "en")         return misspelledrange.location == nsnotfound     } else {         return false     } } 

this way, if word shorter 3 characters, return false, otherwise, test against uitextchecker() , return true or false respectively

edit: alternative using guard:

func isreal (word: string) -> bool {     guard word.characters.count >= 3 else {         return false     }      //return true     let checker = uitextchecker()     let range = nsmakerange(0, word.utf16.count)     let misspelledrange = checker.rangeofmisspelledword(in: word, range: range, startingat: 0, wrap: false, language: "en")     return misspelledrange.location == nsnotfound } 

if guard statement not met (being word.characters.count < 3), function automatically return false