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Readonly | Typescript

  • Readonly | Typescript
interface Person {
  readonly name: string;
  readonly age: number;
}

const person: Person = {
  name: "John",
  age: 30,
};

person.name = "Jane"; // Error: Cannot assign to 'name' because it is a read-only property
person.age = 31; // Error: Cannot assign to 'age' because it is a read-only property