code-style-conventions/prettier/index.js

module.exports = {
  // line length
  printWidth: 100,

  // indentation type
  useTabs: false,

  // whether to prefer ' over "
  singleQuote: false,

  // whether we want to quote props (only-if-they-have-a-dash)
  quoteProps: "as-needed",

  // add trailing comma's everwhere as long as it's supported by es5
  trailingComma: "es5",

  // space brackets method ( param1, param2 ) { }
  bracketSpacing: true,

  // places the > sign on a newline when closing a long html tag
  jsxBracketSameLine: false,

  // always add parentheses on arrow functions (x) => { }
  arrowParens: "always",

  // ignore pragma, run prettier on all files
  requirePragma: false,

  // preserve markdown text as-is
  proseWrap: "preserve",

  // make css leading in whitespace sensitivity
  htmlWhitespaceSensitivity: "css",

  // always end lines with lf
  endOfLine: "lf",

  // tabs are 2 spaces.
  tabWidth: 2,

  // always end statements with a semicolon
  semi: true
};