Utilize the CommonJS module in Angular 2 for optimal functionality

As I dive into developing a basic Angular 2 application that utilizes a CommonJS Node module (Node Yelp), I find myself facing challenges with SystemJS, the default loader used by Angular 2. SystemJS has the capability to handle various module formats.

Despite experimenting with different SystemJS setups and import statements, I keep encountering the same error:

SyntaxError: Unexpected token <(…)

My current SystemJS configuration appears as follows:

System.config({
    packages: {
      app: {
        format: 'register',
        defaultExtension: 'js'
      }
    },
    map: {
        yelp: 'node_modules/yelp'
    }
});

System.import('app/main')
    .then(null, console.error.bind(console));

Alongside my simple AppComponent.ts:

import {Component} from 'angular2/core';
import Yelp from 'yelp';

@Component({
    selector: 'app',
    templateUrl: '/app/app.component.html'
})
export class AppComponent {
    constructor(yelp: Yelp) {
        console.log(yelp);
    }
}

Grasping the entire module system is still a work in progress for me, making it unclear what changes are required here. Most online resources I've come across are either outdated or not directly addressing the loading of CommonJS node modules with SystemJS.

Answer №1

Here's a suggestion you might want to consider:

System.config({
  packages: {
    app: {
      format: 'register',
      defaultExtension: 'js'
    },
    yeld: {
      main: index.js
    }
  },
  map: {
    yelp: 'node_modules/yelp'
  }
});

Additionally, you can import Yelp like this:

import * as Yelp from 'yelp';

Answer №2

It wasn't a surprise that the solution turned out to be quite simple.

Avoid creating your own System.config while working with NPM packages in Angular 2

Instead, opt for using jspm to handle package installations. By doing this, jspm will take care of all the System.config configurations. In my case, all it took was

jspm install npm:yelp

After that, simply add

import Yelp from 'npm:<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b9c0dcd5c9f98897899788">[email protected]</a>';

at the beginning of my AppComponent.ts file

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

ReloginComponent missing in angular 4 service provider

The issue at hand is quite simple - I am encountering an error stating No provider for ReloginComponent Here's what I'm doing: calling a component within a service through injection. For instance: @Injectable() export class HttpUtil { con ...

Issue: Incompatibility between React and TypeScript leading to an error message - "No

When I try to map through an array in my code, I encounter a significant error as shown below: // Home.tsx render() { const { inputs, outputs, expectedOutputs } = this.state; return ( <ContentContainer> {inputs.map((inpu ...

Personalize the loading bar using JavaScript

Currently, I am utilizing a basic progress bar from Bootstrap. However, I have the desire to design a custom progress bar similar to this: Unfortunately, I am uncertain about how to create such a unique progress bar. Perhaps there is an existing JavaScri ...

Developing an Angular application and deploying it onto the server

I've been working on an angular6 application and I need to create a build to test it on my server. Currently, when I use ng server, the application runs without any errors in my browser. c:\Users\emiry\Desktop\Angular\Proje ...

Error: Conversion of "2018-01-01-12:12:12:123456" to a date is not possible for the 'DatePipe' filter

<td>{{suite.testSuiteAttributes && suite.testSuiteAttributes.modifiedTimestamp | date: 'yyyy-MM-dd' }} </td> I am trying to display the date in the "05-Feb-2018 11:00:00 PM CST" CST format, but I keep getting an ...

The malfunction of Ionic 2 segments when used alongside Angular directives

I am attempting to dynamically generate Ionic 2 segment buttons, but I am encountering issues when using Angular directives. The static example works fine: <ion-segment [(ngModel)]="subsActiveDay"> <ion-segment-button value="2016-03-0 ...

The exported instance of sequelize is missing in the Module imports

Good evening! I currently have an express server with a main script that includes the following export: export const sequelize = new Sequelize( 'postgres', config.db_user, config.db_password, { host: 'localhost', port: config ...

Discover the best practices for integrating angular2-material with angular2 framework

Disclaimer: I do not utilize Angular Cli for this project. Incorporated the @angular2-material/core package. Subsequently, installed other angular2-material components such as @angular2-material/button, @angular2-material/card, and more. systemjs.config. ...

Encountering an error that states "this.push is not a function" when trying to select the 2nd or 3rd option

My goal is to extract elements from a drop-down menu and populate a list box based on the selection. The selected value from one list box should then be transferred to another list box, specifically from Available to Selected. However, while selecting Deve ...

Angular 2 vertical carousel: Spinning in a new direction

Does anyone know of an awesome plugin for creating a vertical carousel in Angular 2 that includes animations? I attempted to use ng-angular carousel, and although I was able to make it vertical, I ran into issues when trying to have each slide with differ ...

Angular HTTP Response Has No Content

I am working with a simple Angular Controller: function PirateController($scope, $http) { $scope.DetermineBooty = function () { $scope.Processing = true; $scope.SavedCount = $scope.PirateCount; $scope.PirateCount = 'Please ...

Is there a way to align the content of the info window in Google Maps to the center

Check out this Stackblitz where I am facing an alignment problem with a Google Maps info window. Despite removing the close button, the window's positioning seems skewed due to padding and/or margins on the right side. I'm looking for ways to pr ...

Angular 7 and Webpack 4 combine to create a secure environment for CSS encapsulation

I find myself in a challenging situation where I have a hybrid environment consisting of both Angular 1.x and Angular 7 routes. The Angular 1.x routes rely on the older version of Bootstrap (3), while the Angular 7 routes are supposed to utilize Bootstrap ...

Activate the button once a checkbox within the loop is selected, located outside of the loop

Make the Button clickable only if a checkbox is checked within a loop, with the button placed outside the loop HTML <body ng-controller="MainCtrl"> <div ng-repeat="$item in items"> <label> Amount: <input type="number" ng ...

Creating a higher order component (HOC) that utilizes both withRouter and connect functions in React

I am currently working with the following stack: <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="87f5e2e6e4f3c7b6b1a9b6b4a9b6">[email protected]</a> <a href="/cdn-cgi/l/email-protection" class="__cf_email__" dat ...

How to access a global variable within an Angular application

Using node express and angular, I have set up a route in my express app.js where I pass a variable to the rendered page: app.get('/test', function(req, res){ res.render('test', { user: 12345 }); }); Within my 'test' view, ...

Transferring the methods of Angular websocket into a dedicated service

I need assistance with a component that performs two tasks... Establishes a connection to the server via websocket Sends a message and displays the response. The current implementation is functional, and here is the code snippet for the component: app. ...

How to Install MongoDB Using Command Line (Issue: WirdTiger feature not supported in this version of mongod)

I am encountering difficulties with the installation of Mongod on my system. Can someone please clarify what WirdTiger is and provide guidance on resolving this issue? I have already attempted to install MongoDB on my machine and created the Data\db f ...

Deactivation within the directive does not entail a reset

Check out this Stackblitz In my Angular application, I implemented a Directive that disables a button after it's clicked to prevent double-clicking until a certain time has passed. <button appThrottleClick (throttleClick)="click()"> BUTTON & ...

Even though I have assigned the value of $scope.product to $scope.editOrDeleteProduct, the former is still undergoing changes

Initially, I utilize my $scope.product within a table <tr ng-repeat="product in products ng-click="productClicked(product)"> <td>{{product.prod_name}}</td> <td>{{product.company}}</td> </tr> Subsequen ...