How to handle situations when the Map has not been initialized yet?

In Go, before using a map, it must be initialized, otherwise an attempt to write to it will cause a runtime panic. To handle the situation where the map is not yet initialized (i.e., it is nil), you can:

• Check if the map is initialized before use:

var m map[string]int
if m == nil {
    m = make(map[string]int)
}
 m["key"] = 42

• Or initialize the map immediately upon declaration:

m := make(map[string]int)
 m["key"] = 42

Thus, always ensure that the map is not nil before writing to it.