What Is Service Workers in Angular 5? What Are Design Goal?

What Is Service Workers?

A Service Worker is a script which runs in the web browsers and manages to the caching for web applications. This script runs in the separates and background and don't need any user interactions.

They can query a local cache and deliver a cached response, if it is available in the cached. This makes more reliable and increase the performance.

A Service Worker is a programmable network proxy and it intercept all outgoing HTTP requests and use to allowing you to control how network requests from your page are handled.

The Service Worker is a method that enables applications to take advantage of persistent data in the background processing, including hooks to enable bootstrapping of web applications while offline.

What Is Service Workers in Angular 5+?

Angular 5+ start using service workers and the service workers are increased the apps reliability and performance without needing to code against this.

This is the great advantages for angular and Angular’s service worker is designed for -

ü Improve the performance regarding the unreliable network connection

ü Minimizing the risks of serving outdated content

ü It’s Optimize the end user experience

The main Design Goal of Angular's Service Worker -

ü Caching an application

ü When users refresh applications, they see firstly latest version cached file.

ü The Updates happen in the background process. Do not interrupt to other process.

ü When Updates, it’s happen the previous version of the application is served until an update ready to use

Prerequisites to Supports Service Workers –

We must have the following Angular and CLI versions and also our web application must run in a web browser that supports service workers.

ü Angular 5 or later

ü Angular CLI 1.6 or later

I hope you are enjoying with this post! Please share with you friends!! Thank you!!!

By Anil Singh | Rating of this article (*****)

nullinjectorerror no provider for httpclient angular 17

In Angular 17 where the standalone true option is set by default, the app.config.ts file is generated in src/app/ and provideHttpClient(). We can be added to the list of providers in app.config.ts Step 1: To provide HttpClient in a standalone app we could do this in the app.config.ts file, app.config.ts: import { ApplicationConfig } from '@angular/core'; import { provideRouter } from '@angular/router'; import { routes } from './app.routes'; import { provideClientHydration } from '@angular/platform-browser'; //This (provideHttpClient) will help us to resolve the issue import {provideHttpClient} from '@angular/common/http'; export const appConfig: ApplicationConfig = { providers: [ provideRouter(routes), provideClientHydration(), provideHttpClient () ] }; The appConfig const is used in the main.ts file, see the code, main.ts : import { bootstrapApplication } from '@angular/platform-browser'; import { appConfig } from ...

List of Countries, Nationalities and their Code In Excel File

Download JSON file for this List - Click on JSON file Countries List, Nationalities and Code Excel ID Country Country Code Nationality Person 1 UNITED KINGDOM GB British a Briton 2 ARGENTINA AR Argentinian an Argentinian 3 AUSTRALIA AU Australian an Australian 4 BAHAMAS BS Bahamian a Bahamian 5 BELGIUM BE Belgian a Belgian 6 BRAZIL BR Brazilian a Brazilian 7 CANADA CA Canadian a Canadian 8 CHINA CN Chinese a Chinese 9 COLOMBIA CO Colombian a Colombian 10 CUBA CU Cuban a Cuban 11 DOMINICAN REPUBLIC DO Dominican a Dominican 12 ECUADOR EC Ecuadorean an Ecuadorean 13 EL SALVA...

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin...

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü Tables and data grids ü Notifications ü Loader ü Calendar ü Display time, date and age ü Progress Bar ü Tooltip ü Overlay ü Icons ü Menu ü Charts ü Map ü Pdf viewer ü And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan ...

React | Encryption and Decryption Data/Text using CryptoJs

To encrypt and decrypt data, simply use encrypt () and decrypt () function from an instance of crypto-js. Node.js (Install) Requirements: 1. Node.js 2. npm (Node.js package manager) 3. npm install crypto-js npm install crypto - js Usage - Step 1 - Import var CryptoJS = require ( "crypto-js" ); Step 2 - Encrypt // Encrypt var ciphertext = CryptoJS . AES . encrypt ( JSON . stringify ( data ), 'my-secret-key@123' ). toString (); Step 3 -Decrypt // Decrypt var bytes = CryptoJS . AES . decrypt ( ciphertext , 'my-secret-key@123' ); var decryptedData = JSON . parse ( bytes . toString ( CryptoJS . enc . Utf8 )); As an Example, import React from ...

Anil Singh | Code-sample.com

Search This Blog