Standard configuration for Prettier code-style formatter

1. Make sure your project has an .editorconfig file, defining indent_width, indent_style etc. since prettier will use some of these settings to format source code accordingly.

2. Install this package as a dev dependency

   npm install -D -E @josundt/prettier-config

3. Create a .prettierrc file in the root directory of your project with the following content:

   "@josundt/prettier-config"

4. Add the following formatting scripts to your project's package.json file:

   {
       // ...
       "scripts": {
           // ...
           "format": "npm run format:html && npm run format:style && npm run format:ts",
           "format:ts": "prettier --config .prettierrc src/**/*.ts test/**/*.ts --write",
           "format:style": "prettier --config .prettierrc src/**/*.{css,scss} --write",
           "format:html": "prettier --config .prettierrc src/**/*.{html,ejs} --write",
           // ...
       }
       // ...
   }

5. Test the script:

   npm run format

6. Review all changes and commit.

7. VS Code integration: a. Install Prettier extension (esbenp.prettier-vscode). b. Add the extension to the projects's recommended extensions in the project's .vscode/extensions.json file. c. Configure the extension's behavior in .vscode/settings.json:

   {
       // ...
       "[css]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[scss]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[html]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[javascript]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[json]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[jsonc]": {
           // ...
           "editor.defaultFormatter": "esbenp.prettier-vscode",
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true
       },
       "[typescript]": {
           // ...
           "editor.formatOnPaste": true,
           "editor.formatOnSave": true,
           "editor.defaultFormatter": "esbenp.prettier-vscode"
       }
       // ...
   }

   d. Test that files with the extensions in the list above are auto-formatted on save and paste.