Tag: Javascript

PWA: Service Worker

Posted on by davidaaronyoung | Leave a Comment on PWA: Service Worker

An important piece of installing a service worker in your application is the ability to update it. Here a brief example of registering the service worker and then instructing it to check for an updated version.



    if ('serviceWorker' in navigator) {

        window.addEventListener('load', () => {

            navigator.serviceWorker.register('/service-worker.js').then(registration => {

                // Check for updates

                registration.update();

                console.log('SW registered and update called: ', registration);

            }).catch(registrationError => {

                console.log(registrationError);

            });

        });

    }

Docs:
– Service Worker Lifecycles – Manual Updates

Angular: Environment Variables

Posted on by davidaaronyoung | Leave a Comment on Angular: Environment Variables

Add your variable and make sure that you configure each environment. 



// ./public_html/src/environments/environment.ts or environment.prod.ts

export const environment = {

    production: false,

    apiUrl: 'https://example.apiurl.dev'

};

Then import the environment variables and use where necessary.



// ./public_html/src/app/example.ts

import {environment} from '../environments/environment';


export class Example {

    public envOptions = {

        apiUrl : environment.apiUrl

        // ...

    }

    // ...

}