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.eslintrc
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.eslintrc
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////// Root ESLint Configuration
{
"root": true,
// adds support for things like object/array spread syntax
"parser": "@babel/eslint-parser",
"parserOptions": {
"ecmaFeatures": {
"impliedStrict": true
},
"ecmaVersion": 6,
"sourceType": "module"
},
"env": {
"es6": true,
"node": true // all but ./src is fine to use Node APIs (src-specific config disables Node)
},
"globals": {
"process": "readonly" // {boolean}
},
//
// Rules: pull-in ESLint's recommended set, then tweak as necessary
// @see http://eslint.org/docs/rules/<rule-name>
//
"extends": [
"eslint:recommended",
"prettier" // ALWAYS AFTER ESLINT: disable style rules that conflict with prettier
],
"rules": {
//// possible errors
"no-regex-spaces": "off",
"no-await-in-loop": "error",
"no-async-promise-executor": "error",
"no-misleading-character-class": "error",
//// best practices
"curly": "error",
"default-case": "error",
"eqeqeq": "error",
"guard-for-in": "error",
"no-alert": "error",
"no-caller": "error",
"no-console": "error",
"no-else-return": "error",
"no-eq-null": "error",
"no-eval": "error",
"no-lone-blocks": "error",
"no-loop-func": "error",
"no-multi-spaces": "error",
"no-new": "off", // OFF to allow `myFunction(new RegExp("foo"))`, for example
"no-new-func": "error", // disallow `new Function(...)` to declare a new function
"no-new-wrappers": "error", // disallow `new Number/String/Boolean()`
"no-throw-literal": "error",
"no-warning-comments": [
"error",
{
"terms": ["DEBUG", "FIXME", "HACK"],
"location": "start"
}
],
//// strict mode
"strict": ["error", "function"],
//// variables
"no-catch-shadow": "error",
"no-shadow": "error",
"no-unused-vars": [
"error",
{
"args": "none",
"caughtErrors": "none"
}
],
"no-use-before-define": "error",
//// stylistic issues
// NONE: Prettier will take care of these by reformatting the code on commit,
// save a few exceptions.
// Prettier will format using single quotes per mds-format settings, but
// will not require single quotes instead of backticks/template strings
// when interpolation isn"t used, so this rule will catch those cases
"quotes": [
"error",
"single",
{
"avoidEscape": true,
"allowTemplateLiterals": false
}
],
//// ECMAScript 6 (non-stylistic issues only)
"no-duplicate-imports": ["error", { "includeExports": true }],
"no-useless-constructor": "error",
"no-var": "error",
"prefer-arrow-callback": "off",
"prefer-const": "error"
}
}