.eslintrc.js

module.exports = {
  globals: {
    __PATH_PREFIX__: true,
  },
  extends: `react-app`,
  rules: {
    // taken from https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby/src/utils/eslint-config.js
    "import/no-webpack-loader-syntax": [0],
    // https://github.com/evcohen/eslint-plugin-jsx-a11y/tree/master/docs/rules
    "jsx-a11y/accessible-emoji": `warn`,
    "jsx-a11y/alt-text": `warn`,
    "jsx-a11y/anchor-has-content": `warn`,
    "jsx-a11y/anchor-is-valid": `warn`,
    "jsx-a11y/aria-activedescendant-has-tabindex": `warn`,
    "jsx-a11y/aria-props": `warn`,
    "jsx-a11y/aria-proptypes": `warn`,
    "jsx-a11y/aria-role": `warn`,
    "jsx-a11y/aria-unsupported-elements": `warn`,
    "jsx-a11y/click-events-have-key-events": `warn`,
    "jsx-a11y/heading-has-content": `warn`,
    "jsx-a11y/html-has-lang": `warn`,
    "jsx-a11y/iframe-has-title": `warn`,
    "jsx-a11y/img-redundant-alt": `warn`,
    "jsx-a11y/interactive-supports-focus": `warn`,
    "jsx-a11y/label-has-associated-control": `warn`,
    "jsx-a11y/lang": `warn`,
    "jsx-a11y/media-has-caption": `warn`,
    "jsx-a11y/mouse-events-have-key-events": `warn`,
    "jsx-a11y/no-access-key": `warn`,
    "jsx-a11y/no-autofocus": `warn`,
    "jsx-a11y/no-distracting-elements": `warn`,
    "jsx-a11y/no-interactive-element-to-noninteractive-role": `warn`,
    "jsx-a11y/no-noninteractive-element-interactions": `warn`,
    "jsx-a11y/no-noninteractive-element-to-interactive-role": `warn`,
    "jsx-a11y/no-noninteractive-tabindex": `warn`,
    "jsx-a11y/no-onchange": `warn`,
    "jsx-a11y/no-redundant-roles": `warn`,
    "jsx-a11y/no-static-element-interactions": `warn`,
    "jsx-a11y/role-has-required-aria-props": `warn`,
    "jsx-a11y/role-supports-aria-props": `warn`,
    "jsx-a11y/scope": `warn`,
    "jsx-a11y/tabindex-no-positive": `warn`,
  },
}