我如何定义@for
中角为17的index
变量
const users = [
{ id: 1, name: 'Ali' },
{ id: 2, name: 'reza' },
{ id: 3, name: 'jack' },
];
<ul>
@for (user of users; track user.id; let i = index) {
<li>{{ user.name + i }}</li>
} @empty {
<span>Empty list of users</span>
}
</ul>
指数不像我们在*ngFor
和Unknown "let" parameter variable "index" in Angular17 @for
中得到的那样已知
但以下措施正在奏效:
<ul>
<li *ngFor="let user of users; let i = index">{{ user.name + i }}</li>
</ul>