Using ES6 with Angular 1.x

Alin Chiuaru

Junior Front-end Developer @ [e-spres-oh]

Why would you do that ?

• ES6 Specifications are final
• Angular 1.x is going to stay for a while
• Some features speed up development time
• Stay updated

Transpilers

(recommended)

Directives

//app/components/item/item.directive.js


import template from './item.html';
import controller from './item.controller';
import './item.css';

let itemDirective = function() {

    return {
        restrict: 'EA',
        scope: {},
        template, //no need to use key : val pair if both have the same name
        controller,
        controllerAs: 'vm',
        bindToController: true
    };

};

export default itemDirective;

Directives (2)

//app/components/item/item.directive.js

import template from './item.html';
import controller from './item.controller';
import './item.css';

class ItemDirective {
  constructor() {
    this.restrict = 'EA';
    this.scope = {};
    this.template = template;
    this.controller = controller;
    this.controllerAs = 'vm';
    this.bindToController = true;
  }

  // the module.directive() method expects a factory function
  static directiveFactory() {
    ItemDirective.instance = new ItemDirective();
    return ItemDirective.instance;
  }
}


export default ItemDirective;

Controllers

//app/components/item/item.controller.js

class ItemController {

    // Dependency Injection goes in here
    // Use ng-annotate or ItemController.$inject = [$stateParams, ItemService];

    /*@ngInject*/
    constructor($stateParams, ItemService) { 
        
        //Add the dependencies to the context
        this.$stateParams = $stateParams;
        this.ItemSerivce = ItemService;
    }

    getItem() { 
        // 'this' in here is the 'this' out there
        let id = this.$stateParams.id;
        this.ItemService.getItem(id).then((data) => this.item = data );
        
    }

}

export default ItemController;

Services

MUST be defined using the module.service(fn)

class ItemService {
    /*@ngInject*/
    constructor($http) {
        this.$http = $http;
    }

    getItem(id) {
        //make sure you use the back-tick (``) not the single quotes ('') 
        return this.$http.get(`/api/items/${id}`).then(result => result.data);
    }
}

export default ItemService;

Modules

//app/components/item/item.module.js

import angular from 'angular';
import uiRouter from 'angular-ui-router';
import itemDirective from './item.directive';
import ItemService from './item.service';


let itemModule = angular.module('item', [
    uiRouter
])

.config(($stateProvider) => {
    $stateProvider
        .state('item', {
          url: '/item/:id',
          template: '<item></item>'
        });
})


.service('ItemService', ItemService)

.directive('item', itemDirective); 
// OR .directive('item', ItemDirective.directiveFactory) -- Directives (2)

export default itemModule;

Modules (2)

//app/components/components.module.js

import angular from 'angular';
import Item from './item/item.module';
import Something from './something/something.module';

let componentModule = angular.module('app.components', [
  Item.name,
  Something.name
]);

export default componentModule;

Resources

• Babel.js

• lukehoban/es6features · GitHub

• ②ality – JavaScript and more