Detailed explanation of practical cases for developing PWA applications using @angular/cli V6.0 (with code)

This time I will bring you a detailed practical case study of using @angular/cli V6.0 to develop PWA applications (with code). What are the precautions for using @angular/cli V6.0 to develop PWA applications? , the following is a practical case, let’s take a look.

What is PWA

PWA (Progressive Web App) utilizes TLS, webapp manifests and service workers to enable applications to install and use it offline. In other words, a PWA is like a native app on your phone, but it's built using web technologies like HTML5, JavaScript, and CSS3. When built correctly, PWAs are indistinguishable from native apps. The main features of PWA include the following three points:

Reliable - even in unstable network environments, it can load and display instantly
Experience - Fast response, with smooth animations in response to user operations
Stickiness - Like a native application on the device, with an immersive user experience where users can Add to desktop
PWA itself emphasizes progressiveness and does not require all requirements for security, performance, and experience to be met at once. Developers can check existing features through the PWA Checklist.

Angular has officially released V6.0, and we can already use the corresponding @angular/cli V6.0 to directly develop PWA applications. Not much to say below, let’s take a look at the detailed introduction.

Step one: Install @angular/cli V6.0If you have an old version on your machine, please uninstall it first.

Open your terminal and execute:

npm install -g @angular/cli

After successful installation, use ng -v to check the version number:

##Second step: new an empty project

Execution:

ng new test-ng-pwa

After the creation is successful, take a look at the project and execute:

ng serve --open

Seeing this interface in the browser means everything is OK:

Step 3: Add PWA support

Stop the project, and then execute it in the terminal:

ng add @angular/pwa

The effect is as follows:

##Because the built-in Server of @angular/cli is compiled with --prod Service-worker was not supported at that time, so a third-party lite-server was installed on it. Its official documentation is here:

https://npmjs.com/package/lite-server, please execute :

npm install lite-server --save-dev
npm install lite-server --global

After installation, execute:

npx ng build --prod && lite-server --baseDir dist/test-ng-pwa

Then open your browser to access port 3000. You can see that the service-worker has started successfully:

You can now add the application to the desktop:

This is the effect on Windows ：

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

node koa2 mysql bootstrap to build the front and back ends of the forum

##Detailed explanation of usage examples of this in JS

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