您好,登錄后才能下訂單哦!
Angular的ngRunGuards方法可以用來防止在變更檢測期間執(zhí)行不必要的守衛(wèi)。具體步驟如下:
import { CanActivateChild, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
export class MyGuard implements CanActivateChild {
canActivateChild(
route: ActivatedRouteSnapshot,
state: RouterStateSnapshot
): boolean {
// Add logic here to determine if guard should run
if (condition) {
return true;
} else {
return false;
}
}
}
const routes: Routes = [
{
path: 'protected',
component: ProtectedComponent,
canActivateChild: [MyGuard]
}
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule {
ngRunGuards(transition: Transition, currentSnapshot: ActivatedRouteSnapshot): void {
if (transition._targetState && transition._targetState._routeConfig && transition._targetState._routeConfig.canActivateChild) {
const canActivateChildGuards = transition._targetState._routeConfig.canActivateChild;
canActivateChildGuards.forEach((guard: any) => {
const result = guard.canActivateChild(transition._targetState._root, currentSnapshot);
if (!result) {
transition.abort();
}
});
}
}
}
通過以上步驟,您可以使用Angular的ngRunGuards方法來防止在變更檢測期間執(zhí)行不必要的守衛(wèi)。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進(jìn)行舉報,并提供相關(guān)證據(jù),一經(jīng)查實,將立刻刪除涉嫌侵權(quán)內(nèi)容。