preface

Angular is not very popular in China, and the cost of entry is much more difficult than vue and other technical frameworks, but Angular has many advantages, so if you choose Angular~, then follow me to learn!

The characteristics of

  • cross-platform
  • Code generation
  • Integration testing
  • The unified format facilitates maintenance

Configure the environment

First you need to download Node:
Download from the official website


Then use NPM to download the CLi

npm install -g @angular/cli

Then create a small demo

ng new my-app

Install the dependencies after they are created

npm i Or you can use
yarnIt’s faster

Once you’ve installed your dependencies, you can try running them

npm run start / yarn start

Visit http://localhost:4200/ if you can see this page is ok ~

Common AngularCli directives

Current problems encountered

Changing styles in zorroAntd in CSS files doesn’t work (just add ::ng-deep to 🆗 before className)

There are also some problems with RXjs, such as how to stop polling if you leave the current page (interval). This problem can be judged by the routing address of the current page and set as observable, and finally subscribe withLatestFromding and filter with filter 🆗

WithLatestFrom,

filter(([, y]) => y),

In addition, we recommend a color matching site poisonous mushrooms

1. If the set-cookie of the server returns a value, but the Cookie of the browser does not write the value, check whether the proxy is configured in the front end