.eslintrc

{
  "parser": "babel-eslint",
  "ecmaFeatures": {
    "jsx": true
  },
  "env": {
    "browser": true,
    "node": true
  },
  "globals"   : {
    "require"   : false,
    "module"    : false,
    "window"    : false,
    "document"  : false,
    "jest"      : false,
    "describe"  : false,
    "it"        : false,
    "expect"    : false,
    "beforeEach": false,
    "afterEach" : false,
    "before"    : false,
    "after"     : false,
    "Promise"   : false,
    "confirm"   : false,
    "context"   : false,
    "mixpanel"  : false
  },
  "rules": {
    "quotes": [1, "single"],
    "eol-last": [0],
    "no-mixed-requires": [0],
    "strict": [1, "never"],
    "no-unused-vars": [0, {"vars": "local", "args": "after-used"}],
    "semi": [1, "always"],
    "no-extra-semi": [1],
    "curly": [1, "multi-line"],
    "camelcase": [0, {"properties": "always"}],
    "comma-dangle": [0],
    "no-trailing-spaces": [0],
    "no-underscore-dangle": [0],
    "no-multi-spaces": [1],
    "new-cap": [0],
    "no-unreachable": [1],
    "no-path-concat": [0],
    "no-unused-expressions": [0],
    "no-alert": [0],
    "no-shadow": [1],
    "handle-callback-err": [1]
  }
}