range over array code example

Example 1: go loop through map

for k, v := range m { 
    fmt.Printf("key[%s] value[%s]\n", k, v)
}

// or

for k := range m {
    fmt.Printf("key[%s] value[%s]\n", k, m[k])
}

Example 2: golang range arrat

for i, num := range nums {
        if num == 3 {
            fmt.Println("index:", i)
        }
    }