.eslintrc

// vim: syntax=json

{
    "parser": "babel-eslint",
    "env": {
        "browser": true,
        "node": true,
        "mocha": true
    },

    // Start with rules from eslint recommended setting, and override below.
    "extends": "eslint:recommended",

    // Linting rules are enforced based on the following levels:
    // (Reference: http://eslint.org/docs/user-guide/configuring)
    // 0: turn the rule off
    // 1: turn the rule on as a warning (doesn't affect exit code)
    // 2: turn the rule on as an error (exit code is 1 when triggered)
    "rules": {
        // Use 4 spaces for indentation,
        "indent": [2, 2, { "SwitchCase": 1 }],

        // Require single quotes for strings.
        "quotes": [1],

        // Allow 'while (true), do something, break' pattern.
        "no-constant-condition": 0,

        // Require semicolons where they should be.
        "semi": [2],

        "no-console": [0],

        // Disallow littering with unused variables (except function args).
        "no-unused-vars": [2, {"vars": "all", "args": "none"}],

        // Don't enforce newline at the end of file.
        "eol-last": [0],

        // Don't enforce disallowing mixing regular variable and require declarations
        "no-mixed-requires": [0],

        // Don't enforce disallowing dangling underscores in identifiers
        "no-underscore-dangle": [0]
    }
}