prettier-markdown/lib/prettier-format.js

Prettier JavaScript code in markdown.

'use strict';

const prettier = require('prettier');

module.exports = options => source =>
  prettier.format(
    source,
    Object.assign(
      {
        // Indent lines with tabs
        useTabs: false,

        // Fit code within this line limit
        printWidth: 80,

        // Number of spaces it should use per tab
        tabWidth: 2,

        // If true, will use single instead of double quotes
        singleQuote: true,

        // Controls the printing of trailing commas wherever possible. Valid options:
        // "none" - No trailing commas
        // "es5"  - Trailing commas where valid in ES5 (objects, arrays, etc)
        // "all"  - Trailing commas wherever possible (function arguments)
        //
        // NOTE: Above is only available in 0.19.0 and above. Previously this was
        // a boolean argument.
        trailingComma: 'none',

        // Controls the printing of spaces inside object literals
        bracketSpacing: true,

        // If true, puts the `>` of a multi-line jsx element at the end of
        // the last line instead of being alone on the next line
        jsxBracketSameLine: false,

        // Which parser to use. Valid options are "flow" and "babylon"
        parser: 'babylon',

        // Whether to add a semicolon at the end of every line (semi: true),
        // or only at the beginning of lines that may introduce ASI failures (semi: false)
        semi: true
      },
      options
    )
  );