concatToString
Concatenates characters in this CharArray into a String.
expect fun CharArray.concatToString(): String(source)
val chars = charArrayOf('H', 'e', 'l', 'l', 'o', ' ', 'K', 'o', 't', 'l', 'i', 'n')
val text = chars.concatToString()
println(text) // Output: Hello Kotlin