why this function is not working in Kotlin-CodePudding

fun nonSpaceString(s: String): String {
  var result = " "
  for (index in 0..s.length-1) {
    if (s[index] != ' ') {
      result  = s[index]
    }
  }
  return result
}
fun main(){
nonSpaceString("abc d e")
}

I tried to eleminate spaces in string.

but result is holding "a" and then holding "ab" but at the end result holds nothing

CodePudding user response：

Your code runs fine, it returns abcde.

If your aim is just to remove all spaces, it does not have to be this complicated.

"abc d e".filter { !it.isWhitespace() }

will do.

CodePudding user response：

You have initialized the result with a space character. So the result starts with a space that may confuse you. Apart from that, your function is working fine. Additionally, you can use the replace function to remove all spaces from a string

"abc d e".replace("\\s ".toRegex(), "")