map Create populated in Go

In Go, a hash is known as a map. A map allows you to store key-value pairs in an unordered collection. Here is an example of how to create a simple string to string map:

// create a string to string map
m := make(map[string]string)
// add key-value pairs to the map

m["apple"] = "red"

m["banana"] = "yellow"
// retrieve a value from the map

color := m["apple"]

fmt.Println(color) // prints "red"

In this example, we create an empty map using the make function. We then add two key-value pairs to the map using the syntax m[key] = value. Finally, we retrieve the value associated with the key "apple" and print it to the console.

Here is another example that shows how to create a map of integers to strings:

// create a map of integers to strings
m := map[int]string {
    1: "one",
    2: "two",
    3: "three",
}
// retrieve a value from the map

word := m[2]

fmt.Println(word) // prints "two"

In this example, we create a map using a literal syntax with curly braces {}. We then add three key-value pairs to the map, where the keys are integers and the values are strings. Finally, we retrieve the value associated with the key 2 and print it to the console.