My .prettierrc.js file

module.exports = {
  arrowParens: 'avoid',
  bracketSpacing: false,
  embeddedLanguageFormatting: 'auto',
  endOfLine: 'lf',
  htmlWhitespaceSensitivity: 'css',
  insertPragma: false,
  jsxBracketSameLine: false,
  jsxSingleQuote: false,
  printWidth: 100,
  proseWrap: 'always',
  quoteProps: 'as-needed',
  requirePragma: false,
  semi: false,
  singleQuote: true,
  tabWidth: 2,
  trailingComma: 'all',
  useTabs: false,
};
js

You can also check out my VS Code settings, which includes settings for all of VS Code and includes Prettier settings, eg. "prettier.printWidth": 100.