JuniorTheoryOccasional

In what order does this loop visit the pairs of the map?

package main

import "fmt"

func main() {
    m := map[int]string{1: "a", 2: "b", 3: "c"}
    for k, v := range m {
        fmt.Println(k, v)
    }
}

In no fixed order, which may differ from run to run

Expecting 1 a, 2 b, 3 c because a run printed them so: the order is unspecified and Go randomizes it on purpose.
Expecting the sorted order of fmt.Println(m): fmt sorts keys before printing, while range does not; sort the keys yourself.

JuniorTheoryOccasional

package main

import "fmt"

func main() {
    m := map[int]string{1: "a", 2: "b", 3: "c"}
    for k, v := range m {
        fmt.Println(k, v)
    }
}

In no fixed order, which may differ from run to run

Expecting 1 a, 2 b, 3 c because a run printed them so: the order is unspecified and Go randomizes it on purpose.
Expecting the sorted order of fmt.Println(m): fmt sorts keys before printing, while range does not; sort the keys yourself.