In this section, we are going to see how to convert a map into an array of keys and values. Let's imagine a variable named nameAges that has map, as shown in the following code block, and we map string values to integer values. There are names and ages too.
We need to add a new struct named NameAge and it will have Name as a string and Age as integer. We are going to iterate over our nameAges map now. We'll be using a for loop and when you use a range operator on a map type, it returns two things, a key and the value. So, let's write this code:
package main
import "fmt"
type NameAge struct{
Name string
Age int
}
func main(){
var nameAgeSlice []NameAge
nameAges := map[string]int{
"Michael": 30,
"John": 25,
"Jessica": 26,
"Ali": 18,
}
for key, value := range nameAges{
nameAgeSlice = append(nameAgeSlice, NameAge {key, value})
}
fmt.Println(nameAgeSlice)
}On running the preceding code, you'll obtain the following...