3

The following code yields true. So I'm wondering for map[string]string in Golang, is there a way to differentiate empty string and nothing?

package main import "fmt" func main() { m := make(map[string]string) m["abc"] = "" fmt.Println(m["a"] == m["abc"]) //true }
Improve this question
0

1 Answer 1

Reset to default
9

If by "nothing" you mean that the element is not in the map you can use the ok idiom:

val, ok := myMap["value"] // ok is true if value was in the map

You can find more information in Effective Go.

Improve this answer
Sign up to request clarification or add additional context in comments.

Comments