Usuń białe przestrzenie
"hello world".replace(/\s/g, "");
code fighter
"hello world".replace(/\s/g, "");.replaceAll(/\s/g,'')name = name.strip()//Extenion function
fun String.removeWhitespaces() = replace(" ", "")
// Uses
var str = "This is an example text".removeWhitespaces()
println(str)