Angular 的遍历，默写一遍。

let list = new Array();
list.push(new Object({
  "name": "玉龙BB"
}));
list.forEach(item => {
 console.log(item.name); 
});

<ul>
  <li *ngFor="let item of list">{{list.name}}</li>
</ul>

let map = new Map<string, string>();
map.set("name": "玉龙BB");
Object.keys(map).map(key => {
  console.log(key);
  console.log(map[key]);
});

<dl *ngFor="let item of map | keyvalue">
  <dt>{{item.key}}</dt>
  <dd>{{item.value}}</dd>
</dl>