.eslintrc.js

// http://eslint.org/docs/user-guide/configuring

module.exports = {

  root: true,

  'env': {
    'mocha': true,  // Used for unit tests.
  },

  'globals': {
    'expect': true,  // Used for unit tests.
    'sinon': true,  // Used for unit tests.
  },

  parserOptions: {
    sourceType: 'module'
  },

  extends: 'standard',

  plugins: [

    // Required to lint *.vue files.
    // https://github.com/BenoitZugmeyer/eslint-plugin-html/tree/40c728#usage
    'html',

  ],

  rules: {

    // https://eslint.org/docs/user-guide/migrating-to-4.0.0#-the-no-multi-spaces-rule-is-more-strict-by-default
    'no-multi-spaces': ['error', {'ignoreEOLComments': true}],

    // Require or disallow trailing commas http://eslint.org/docs/rules/comma-dangle
    'comma-dangle': ['error', 'always-multiline'],

    // Limit multiple empty lines http://eslint.org/docs/rules/no-multiple-empty-lines
    'no-multiple-empty-lines': ['error', { 'max': 2 }],

    // Disable padding within blocks http://eslint.org/docs/rules/padded-blocks.html
    'padded-blocks': 'off',

  }

}