Go — declared and not used -

Go — declared and not used -

what's wrong code?

package main import "fmt" // fibonacci function returns // function returns int. func fibonacci() func() int { prev := 0 curr := 1 homecoming func() int { temp := curr curr := curr + prev prev := temp homecoming curr } } func main() { f := fibonacci() := 0; < 10; i++ { fmt.println(f()) } }

prog.go:13: prev declared , not used

you declared variable named prev , never used it.

specifically, said prev := temp. creating new local variable in current scope named prev. assume meant prev = temp, modifies prev variable inherited surrounding scope. meant curr = curr + prev on previous line, instead of using :=.

go