我試圖用isRouteActive
功能在點擊其中包含的鏈接到active
類li
元素的開關讀取屬性「isRouteActive」的定義,但它一直給我像TypeError: Cannot read property 'isRouteActive' of undefined in [isRouteActive(['./Home']) in [email protected]:16]
錯誤。該文件看起來像下面這樣:角2:類型錯誤:無法在
import {Component} from 'angular2/core';
import {ROUTER_DIRECTIVES, RouteConfig, Router } from 'angular2/router';
import {FORM_PROVIDERS, FORM_DIRECTIVES, Control} from 'angular2/common';
import {LoginComponent} from './login.component.js';
import {HomeComponent} from './home.component.js';
@Component({
selector: 'front-page-app',
providers: [ FORM_PROVIDERS ],
directives: [ ROUTER_DIRECTIVES, FORM_DIRECTIVES ],
template: `
<div class="container">
<div class="header clearfix">
<nav>
<ul class="nav nav-pills pull-right">
<li #homeLink role="presentation"
[class.active]="isRouteActive(['./Home'])">
<a [routerLink]="['./Home']">Home</a>
</li>
<li #loginLink role="presentation"
[class.active]="isRouteActive(['./Login'])">
<a [routerLink]="['./Login']">Login</a>
</li>
</ul>
</nav>
<h3 class="text-muted">Fomoapp</h3>
</div>
</div> <!-- /container -->
<router-outlet></router-outlet>
`
})
@RouteConfig([
{ path: '/login', component: LoginComponent, name: 'Login' },
{ path: '/home', component: HomeComponent, name: 'Home' },
{ path: '/', redirectTo: ['Home'] }
])
export class AppComponent {
public isRouteActive(route) {
return this.router.isRouteActive(this.router.generate(route))
}
}
我嘗試了多種途徑,像一個 '/ home', '#/家', '/主頁', './Home', '家',但沒有的他們工作。錯誤可能與什麼有關?以及如何真正調試這種情況?