Skip to main content

What is Routes and Route Properties?

Angular Route is an array of route configurations. The “RouterModule.forRoot” method in the module imports to configure the router.

type Routes = Route[];

Each Route has the following properties -
interface Route {
  path?: string
  pathMatch?: string
  matcher?: UrlMatcher
  component?: Type<any>
  redirectTo?: string
  outlet?: string
  canActivate?: any[]
  canActivateChild?: any[]
  canDeactivate?: any[]
  canLoad?: any[]
  data?: Data
  resolve?: ResolveData
  children?: Routes
  loadChildren?: LoadChildren
  runGuardsAndResolvers?: RunGuardsAndResolvers
}

List of properties and it has the following order -
1.      path - It uses the route matcher DSL
2.      pathMatch - It uses to specifies the matching strategy
3.      matcher - It uses to defines a custom strategy for path matching
4.      component - It is a component type
5.      redirectTo - It is the URL fragment and it will replace the current matched segment
6.      outlet - It is the name of the outlet the component should be placed into
7.      canActivate  - It is an array of DI tokens  and used to handle the CanActivate handlers
8.      canActivateChild - It is an array of DI tokens and used to handle the CanActivateChild handlers
9.      canDeactivate - It is an array of DI tokens and used to handle the CanDeactivate handlers
10.  canLoad - It is an array of DI tokens and used to handle the CanLoad handlers
11.  data - It is additional data provided to the component by using the ActivatedRoute
12.  resolve - It is a map of DI tokens used to look up data resolvers
13.  runGuardsAndResolvers - It is defined when guards and resolvers will be run and by default, they run only when the matrix parameters of the route change.
14.  children - it is an array of child route definitions
15.  loadChildren - It is a reference to lazily loaded child routes.

The following example help you to understand the Router, Router module, and Routes -
In this example, the array of appRoots describes how to navigate from one view to other views and pass it into RouterModule.forRoot method to configure the router.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import {RoutesRouterModule,}  from '@angular/router';

//Import Components
import { AppComponent } from './app.component';
import { DashboardComponent } from './dashboard/dashboard.component';
import { UserComponent } from './user/user.component';
import { UserDetailComponent } from './user-detail/user-detail.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component'

//Apps roots
const appRoots = [
  path: ''redirectTo: '/dashboard'pathMatch: 'full' },
  path: 'user/:id'component: UserDetailComponent }, //Id is a Roots parameter.
  path: 'users'component: UserComponentdata:title:'User List'} },
  path: '**'redirectTo: 'PageNotFoundComponent' } //Wild Cards (**), the router will instantiate the PageNotFound component
];

//AppModule class with @NgModule decorator
@NgModule({
  //Static, this is the compiler configuration
  //declarations is used for configure the selectors
  declarations: [
    AppComponent,
    DashboardComponent,
    UserComponent,
    UserDetailComponent,
    PageNotFoundComponent,
  ],
  //Composability and Grouping
  //imports used for composing NgModules together
  imports: [
    BrowserModule,
    //enableTracing is used for debugging purposes only
    RouterModule.forRoot(appRoots, { enableTracing: true })
  ], 
  //Runtime or injector configuration
  //providers is used for runtime injector configuration
  providers: [],
  //bootstrapped entry component
  bootstrap: [AppComponent]
})
export class AppModule { }

By Anil Singh | Rating of this article (*****)

Popular posts from this blog

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin

List of Countries, Nationalities and their Code In Excel File

Download JSON file for this List - Click on JSON file    Countries List, Nationalities and Code Excel ID Country Country Code Nationality Person 1 UNITED KINGDOM GB British a Briton 2 ARGENTINA AR Argentinian an Argentinian 3 AUSTRALIA AU Australian an Australian 4 BAHAMAS BS Bahamian a Bahamian 5 BELGIUM BE Belgian a Belgian 6 BRAZIL BR Brazilian a Brazilian 7 CANADA CA Canadian a Canadian 8 CHINA CN Chinese a Chinese 9 COLOMBIA CO Colombian a Colombian 10 CUBA CU Cuban a Cuban 11 DOMINICAN REPUBLIC DO Dominican a Dominican 12 ECUADOR EC Ecuadorean an Ecuadorean 13 EL SALVADOR

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü   Tables and data grids ü   Notifications ü   Loader ü   Calendar ü   Display time, date and age ü   Progress Bar ü   Tooltip ü   Overlay ü   Icons ü   Menu ü   Charts ü   Map ü   Pdf viewer ü   And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan You was inspired by Angular and the Vue.js 2 components looks like -

React | Encryption and Decryption Data/Text using CryptoJs

To encrypt and decrypt data, simply use encrypt () and decrypt () function from an instance of crypto-js. Node.js (Install) Requirements: 1.       Node.js 2.       npm (Node.js package manager) 3.       npm install crypto-js npm   install   crypto - js Usage - Step 1 - Import var   CryptoJS  =  require ( "crypto-js" ); Step 2 - Encrypt    // Encrypt    var   ciphertext  =  CryptoJS . AES . encrypt ( JSON . stringify ( data ),  'my-secret-key@123' ). toString (); Step 3 -Decrypt    // Decrypt    var   bytes  =  CryptoJS . AES . decrypt ( ciphertext ,  'my-secret-key@123' );    var   decryptedData  =  JSON . parse ( bytes . toString ( CryptoJS . enc . Utf8 )); As an Example,   import   React   from   'react' ; import   './App.css' ; //Including all libraries, for access to extra methods. var   CryptoJS  =  require ( "crypto-js" ); function   App () {    var   data

.NET Core MVC Interview Questions and Answers

» OOPs Interview Questions Object Oriented Programming (OOP) is a technique to think a real-world in terms of objects. This is essentially a design philosophy that uses a different set of programming languages such as C#... Posted In .NET » .Net Constructor Interview Questions A class constructor is a special member function of a class that is executed whenever we create new objects of that class. When a class or struct is created, its constructor is called. A constructor has exactly the same name as that of class and it does not have any return type… Posted In .NET » .NET Delegates Interview Questions Delegates are used to define callback methods and implement event handling, and they are declared using the "delegate" keyword. A delegate in C# is similar to function pointers of C++, but C# delegates are type safe… Posted In .NET » ASP.Net C# Interview Questions C# was developed by Microsoft and is used in essentially all of their products. It is mainly used for