.eslintrc

{
  "parser": "babel-eslint",
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true
  },
  "extends": ["strict"],
  "ecmaFeatures": {
    "experimentalObjectRestSpread": true,
  },
  // Overrides:
  "rules": {
    // We always add a newline after variable declarations, e.g. `require`s:
    // TODO: Disabled for now due to issues of valid `var` before `if`:
    "newline-after-var": 0,

    // Disallow use of semicolons:
    "semi": [2, "never"],

    // Enforce no spaces inside object and array literals:
    "object-curly-spacing": [2, "never"],
    "array-bracket-spacing": [2, "never"],

    // Allow, but warn on `TODO`, `FIXME`, etc. comments:
    "no-warning-comments": [1],

    "id-length": [2, {"min": 3, "exceptions": ["id"]}],

    // Disallow dashes in filenames, i.e. favor `PascalCase` and `camelCase`
    // over `kebab-case`:
    "filenames/filenames": [2, "^[a-zA-Z.]+$"],

    // Max line length:
    "max-len": [2, 80],

    // Identifier formats:
    "id-match": [2, "^([_a-zA-Z][a-zA-Z0-9]*|[A-Z_]*)$"],

    // Allow `/*eslint … */` overrides:
    "spaced-comment": [2, "always", {
      markers: ["eslint-disable", "eslint-enable"]
    }],

    // We always allow inline comments, e.g. to denote variable
    // units (milliseconds, seconds, etc.)
    "no-inline-comments": 0,

    // Allow any style of function declaration:
    "func-style": 0,
  }
}