Why did the developers of Angular 2+ choose to use JavaScript Objects instead of Typescript Classes for defining Router routes?

When working with the Angular 2+ Router, the standard approach involves defining routes in the app-routing module.

app-routing.module.ts

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';

import { AboutComponent } from './pages/about/about.component';
import { HomeComponent } from './pages/home/home.component';

const routes: Routes = [
  { path: 'home', component: HomeComponent },
  { path: 'about', component: AboutComponent },
  { path: '', component: HomeComponent},
  { path: '**', pathMatch: 'full', component: HomeComponent},
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }

The route definitions are defined as JavaScript Objects in the format

{ path: '[path]', component: '[componentName]' }
. However, it is recommended to keep this data separate from the components. (An example of this can be found in a tutorial on Angular.io)

Have you ever wondered why there isn't a "routeDefinition" TypeScript class available? Here's an idea:

route-definition.ts

 export class RouteDefinition {
    constructor(
        public path: string,
        public component: string) {}

    //Additional constructors can be added if needed
}

Instead of using

{ path: '[path]', component '[component]' } 

You could simply use

new Route ('[path]', '[component]')

If no specific reason exists, would it go against best practices to create and utilize this class? While individual freedom exists within projects, aligning with established best practices is generally beneficial."

Answer №1

It appears that your suggestion aligns perfectly with the current implementation. The existence of a Routes type, which serves as an alias for Route[], indicates this similarity. Furthermore, the Route interface encompasses all potential attributes for defining a Route.

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