Python-style generators in Go

Question

I\'m currently working through the Tour of Go, and I thought that goroutines have been used similarly to Python generators, particularly with Question 66. I thought 66 looked co

Answer 1

You could use closures to simulate a generator. Here is the example from golang.org.

package main

import "fmt"

// fib returns a function that returns
// successive Fibonacci numbers.
func fib() func() int {
    a, b := 0, 1
    return func() int {
        a, b = b, a+b
        return a
    }
}

func main() {
    f := fib()
    // Function calls are evaluated left-to-right.
    fmt.Println(f(), f(), f(), f(), f())
}