[英]How to display following object in angular5 html file?
假设这是您的数据:
public data = {
tickers:[
{id:"1",name:"Ticker Name 1", company:"Company 1"},
{id:"2",name:"Ticker Name 2", company:"comapny 2"}
],
users:[
{id:"1",first_name:"User1 ", last_name:"u1last", email:"user1@test.com"},
{id:"2",first_name:"User2", last_name:"u2last", email:"user2@test.com"},
{id:"3",first_name:"User3", last_name:"u3last", email:"user3@test.com"},
{id:"4",first_name:"User4", last_name:"u4last", email:"user4@test.com"}
]
};
public dataKeys; // This will hold the main Object Keys.
构造函数将如下所示:
constructor() {
this.dataKeys = Object.keys(this.data);
}
这是您需要编写的简单HTML:
<div *ngFor="let key of dataKeys">
<h3>{{ key }}</h3>
<ul>
<li *ngFor="let d of data[key]">{{d.name || d.first_name}}</li>
</ul>
</div>
这是适合您的情况的完整工作插件:
您可以使用json管道进行调试,如下所示:
{{object |json}}
如果您完全希望如图所示,请查看此解决方案 。 在这种情况下,您无需使用* ngFor在模板中手动编写对象的一级属性名称
你可以这样使用
<ul>
<P>users</p>
<li *ngFor="let item of object.users; let i = index">
{{i}}. {{item.frist_name}}
</li>
<P>Tickets</p>
<li *ngFor="let item of object.tickers; let i = index">
{{i}}. {{item.name}}
</li>
</ul>
根据文档 ,应该是这样的:
Users:
<ol>
<li *ngFor="let user of users">{{user.first_name}}</li>
</ol>
Tickets:
<ol>
<li *ngFor="let ticket of tickets">{{ticket.name}}</li>
</ol>
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