Angular6的ngFor遍歷對象數組

詳細請看代碼實現

ts：

export class Demo {
  objectKeys = Object.keys;
  obj = { 
     one: '111',
     second: '222'
  };
  constructor(){}
}

html:

<div *ngFor="let key of objectKeys(obj)">
    {{key}} : {{obj[key]}}
</div>

over!