Step 1: Register a Service Worker and Get Permission for Notification. I tried to create a simple notification function for my web app using JavaScript.Js, Service Worker, and the Web Push library, create a push notification-like mobile application. Open Devtools -> Application -> Service Workers and use the Push input to send a JSON notification payload. Notification click handlinglink. Service workers are a great way to run some script in the background and not putting the load on your main business logic running on front-end. The showNotification() method of the ServiceWorkerRegistration interface creates a notification on an active service worker. Assigns a variety of meal preparation tasks to Cook's Helper, such as washing, slicing and mixing ingredients, panning and seasoning foods. Click on the icon in the list below to obtain the complete Job Announcement. No tip credit is available in the building service Industry.