You can test for existence: val, ok := my_map[123] if ok { ... } https://go.dev/blog/maps#working-with-maps https://go.dev/blog/maps#worki

You can test for existence: val, ok := my_map[123] if ok { ... } https://go.dev/blog/maps#working-with-maps https://go.dev/blog/maps#working-with-maps