ts 函数重载

class User {

  constructor(public readonly name: string, public readonly value: Function) {}

}

class Data {

  values: any[] = [];

  register(name: string, value: Function): void;

  register(user: User): void;

  register(name: string | User, value?: Function) {

    if (name instanceof User) {

      this.values.push(name);

    } else {

      this.values.push(new User(name, value!));

    }

  }

}

const data = new Data();

data.register("a", () => {});

data.register(new User('b', () => {}));

console.assert( data.values.length === 2 )

巴特西

ts 函数重载

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