How to set up auto-fix on save by using the project’s Eslint config with VS Code

This is a quick instruction to set up auto-fix on save by using the project’s eslint config with VS Code. It works for both TS and JS.

1. Install ESLint plugin for VS Code.

2. Add config to VS code

Go to Code -> Preference -> Settings (or press cmd + ,).

Search codeActionsOnSave, click edit in settings.json and add the config below.

  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  "eslint.validate": ["javascript", "typescript"]
Front-End
How to configure debugger when running jest for React unit tests with VS Code

We can debug the jest test with console.log (make sure to remove the -silent option). But, attaching a debugger and stepping through the tests sometimes may help us to troubleshoot quicker under certain circumstances. 1. Install Jest Plugin Install Jest plugin. 2. Configure Press cmd + shift + p. Find …

Front-End
Unable to Get Local Issuer Certificate for installing Npm Modules

unable to get local issuer certificate error with yarn install from a private npm repository (such as JFrog), you can try running this command: yarn config set “strict-ssl” false yarn install Error message example error An unexpected error occurred: “https://npco.jfrog.io/artifactory/api/npm/npm-mdh/@mdh/my-library/-/@mdh/my-library-3.21.0.tgz: unable to get local issuer certificate”.

Front-End
Moving away from React.FC and React.VFC

Since the release of React 18, VFC has been deprecated. FunctionalComponent (FC) does not have implicit children any more. See this pull request. It states: Since the release of the React 18 types we haven’t seen any use case for FunctionComponent with implicit children beyond "it breaks existing stuff". As …