TypeScript1.8 入門④ (ジェネリクス) ref: https://qiita.com/tfrcm/items/cd8dafcc8ee4f824ccf5

sample.ts

interface Result {
  a: number;
  b: number;
}


class MyData<T extends Result> {
  constructor(public value: T) {}
  getArray(): T[] {
    return [this.value, this.value, this.value];
  }
}

let result = {
  a: 3,
  b: 5
};

let v1 = new MyData<Result>(result);
console.log(v1.getArray());