Iteration question

Question

fun f(x: String): Int {
var z = 0
for(a in x) {
z++
}
return z
}
fun main(args: Array<String>) {
println(f("hello"))
}

Answer ==> 5

I got the answer of the about statement right but would need a step by step explanation as to how (a ) plays a part here. I know (x) to be the param of the function (f) but couldn't get (a)

Answer 1

Habibu Mamudu 🇬🇭

'a' is a each value of string 'x'
if you print that, each character of string would be print.