ESLint configuration

.eslintrc

{
    "parser": "babel-eslint",

    "env": {
        "browser": true, // allow browser globals like `window` and `document`
        "node": true, // allow node globals like `process`
        "commonjs": true, // allow globals like `require` and `exports`
        "mocha": true // allow mocha globals like `describe` and `it`
    },

    "settings": {
        "ecmascript": 6,
        "jsx": true // react jsx syntax
    },

    "plugins": [
        "react"
    ],

    "extends": "eslint:recommended", // use recommended settings from eslint

    "rules": {
        // 0 = "off"
        // 1 = "warn"
        // 2 = "error"

        "strict": 2, // always enable strict mode

        "semi": 2, // semicolons

        "index": [
            "error",
            4 // use 4 spaces
        ],

        "quotes": [
            "error",
            "single" // use single quotes
        ],

        "no-unused-vars": 2, // no unused variables

        "linebreak-style": 2, // default is unix

        "eol-last": 2, // default is unix

        "no-mixed-requires": 0,

        "no-underscore-dangle": 0,

        "camelcase": 0,

        "react/jsx-uses-vars": 1
    }
}

.vimrc

let g:syntastic_javascript_checkers = ['eslint']

README.md

My ESLint Configuration

You may place .eslintrc in your project directory and/or your home directory ~/.eslintrc.

Install the linters globally via npm:

$ bash install.sh

Update your .vimrc if you are using syntastic.

Documentation on configuring ESLint.

install.sh

#!/usr/bin/env bash

npm install -g eslint
npm install -g babel-eslint
npm install -g eslint-plugin-react