Angular 1 vs 2 Component Naming

angular1-v-angular2-component-naming.js

// Angular 1
const module = angular.module('myModule', []);
module.component('myComponent', {
  template: '<div>Hello World!</div>'
});

/***************************************************************/

// Angular 2
import {Component} from '@angular/core';

@Component({
  selector: 'my-component',
  template: '<div>Hello World</div>'
})
class MyComponent {}