Golang WASM test

package main

import (
    "syscall/js"
    "strconv"
)

func fib(i int, c chan int) {
    var temp int
    prev:=0
    current:=0
    for j:=0;j<=i;j++ {
        if j==1 {
            current=1
        } else {
            temp=current
            current=current+prev
            prev=temp
        }
    }
    c <- current
}


func outputME() string {
    c :=make (chan int)
    go fib(9,c)
    d  := <-c
    return "Fibonacci of 9 is "+strconv.Itoa(d)
}
=
func main() {

    js.Global().Get("document").Call("getElementById","demo").Set("textContent",outputME())
}