import ballerina/io;
// `Person` type allows additional fields with `anydata` values.
type Person record {
string name;
};
// `Employee` type allows additional fields with `anydata` values.
type Employee record {
string name;
int id;
};
// Adds an additional `id` field to `e`.
Employee e = {
name: "James", id: 10
};
// You can assign an `Employee` type value to a `Person`.
Person p = e;
Person p2 = {
name: "John", "country": "UK"
};
// You can assign a `Person` type value to a `map`.
map<anydata> m = p2;
public function main() {
io:println(p);
io:println(m);
}
Open RecordsRecord types are by default open: they allow fields other than those specified. The type of unspecified
fields are |
import ballerina/io;
type Person record {
string name;
};
Person type allows additional fields with anydata values.
type Employee record {
string name;
int id;
};
Employee type allows additional fields with anydata values.
Employee e = {
name: "James", id: 10
};
Adds an additional id field to e.
Person p = e;
You can assign an Employee type value to a Person.
Person p2 = {
name: "John", "country": "UK"
};
map<anydata> m = p2;
You can assign a Person type value to a map.
public function main() {
io:println(p);
io:println(m);
}
bal run open_records.bal
{"name":"James","id":10}
{"name":"John","country":"UK"}
