.eslintrc

{
  "env": {
		"node": true,
		"es6": true
  },
  "rules": {
		/* Possible Errors */
		"no-extra-boolean-cast": "error",

		/* Best Practices */
		"eqeqeq":"error",
		"no-empty-function":"error",
		"no-eval": "error",
		"no-useless-concat": "error",
		"no-useless-return": "error",
		"no-with": "error",
		"prefer-promise-reject-errors": "warn",

		/* Strict Mode */
		"strict": "error",


		/* Variables */
		"no-unused-vars": "warn",
		"no-use-before-define": "error",

		/* Node.js and CommonJS */
		"callback-return": "error",
		"handle-callback-err":"error",
		"no-path-concat":"error",
		"no-process-exit":"error",

		/* Stylistic Issues */
		"array-bracket-spacing": "error",
		"block-spacing": "error",
		"brace-style": ["error", "1tbs", { "allowSingleLine": true }],
		"camelcase": "warn",
		"comma-dangle":"error",
		"comma-spacing": ["error", { "before": false, "after": true }],
		"comma-style": ["error", "last"],
		"eol-last":"error",
		"func-call-spacing": ["error", "never"],
		"indent": ["error", 2],
		"linebreak-style": ["warn", "unix"],
		"max-depth": ["error", 3],
		"max-nested-callbacks": ["error", 3],
		"new-parens": "error",
		"newline-per-chained-call": "error",
		"no-mixed-spaces-and-tabs": "error",
		"no-multiple-empty-lines": ["error", { "max": 1, "maxEOF": 1 }],
		"no-tabs": "error",
		"no-trailing-spaces": "error",
		"no-whitespace-before-property": "error",
		"object-curly-spacing": ["error", "always"],

		"object-property-newline": "warn",
		"quotes": ["warn", "single"],
		"semi":["error", "never"],
		"space-before-function-paren": "error",
		"switch-colon-spacing": ["error", {"after": true, "before": false}],

		/* ECMAScript 6 */
		"arrow-body-style": ["error", "always"],
		"arrow-parens": ["error", "always"],
		"arrow-spacing": ["error", { "before": true, "after": true }],
		"no-var": "warn",
		"prefer-const":"warn",
		"prefer-template": "warn"

  },
  "plugins": [ "eslint-plugin-one-variable-per-var"	]
}