Question

How to extract only words with first-letter lowercase from a string in Swift

Answer 1

import Foundation

func lowercaseWords(from s: String) -> [String] {
    return s
        .components(separatedBy: CharacterSet.whitespacesAndNewlines)
        .filter { !$0.isEmpty && $0.first!.isLowercase }
}

let s = "Swift java Rust python C CPP nodejs go"

let result = lowercaseWords(from: s)

for w in result {
    print(w)
}



/*
run:

java
python
nodejs
go

*/

 

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