/
.eslintrc.js
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/
.eslintrc.js
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module.exports = {
"root": true,
"env": {
"node": true,
"es6": true
},
"parser": "@typescript-eslint/parser",
"plugins": [
"mocha",
"@typescript-eslint",
"unicorn",
"import"
],
"extends": [
"plugin:prettier/recommended"
],
"rules": {
// Error if files are not formatted with Prettier correctly.
"prettier/prettier": 2,
// syntax preferences
"quotes": [2, "single", {
"avoidEscape": true,
"allowTemplateLiterals": true
}],
"spaced-comment": [2, "always", {
"markers": ["*"]
}],
"eqeqeq": [2],
"accessor-pairs": [2, {
"getWithoutSet": false,
"setWithoutGet": false
}],
"new-parens": 2,
"func-call-spacing": 2,
"prefer-const": 2,
"max-len": [2, {
/* this setting doesn't impact things as we use Prettier to format
* our code and hence dictate the line length.
* Prettier aims for 80 but sometimes makes the decision to go just
* over 80 chars as it decides that's better than wrapping. ESLint's
* rule defaults to 80 but therefore conflicts with Prettier. So we
* set it to something far higher than Prettier would allow to avoid
* it causing issues and conflicting with Prettier.
*/
"code": 200,
"comments": 90,
"ignoreTemplateLiterals": true,
"ignoreUrls": true,
"ignoreStrings": true,
"ignoreRegExpLiterals": true
}],
// anti-patterns
"no-var": 2,
"no-with": 2,
"no-multi-str": 2,
"no-caller": 2,
"no-implied-eval": 2,
"no-labels": 2,
"no-new-object": 2,
"no-octal-escape": 2,
"no-self-compare": 2,
"no-shadow-restricted-names": 2,
"no-cond-assign": 2,
"no-debugger": 2,
"no-dupe-keys": 2,
"no-duplicate-case": 2,
"no-empty-character-class": 2,
"no-unreachable": 2,
"no-unsafe-negation": 2,
"radix": 2,
"valid-typeof": 2,
"no-unused-vars": [2, { "args": "none", "vars": "local", "varsIgnorePattern": "([fx]?describe|[fx]?it|beforeAll|beforeEach|afterAll|afterEach)" }],
"no-implicit-globals": [2],
// es2015 features
"require-yield": 2,
"template-curly-spacing": [2, "never"],
// ensure we don't have any it.only or describe.only in prod
"mocha/no-exclusive-tests": "error",
// enforce the variable in a catch block is named error
"unicorn/catch-error-name": "error",
"no-restricted-imports": ["error", {
patterns: ["*Events"],
paths: [{
name: "mitt",
message:
"Import Mitt from the vendored location: vendor/mitt/src/index.js",
}],
}],
"import/extensions": ["error", "ignorePackages"]
},
"overrides": [
{
"files": ["*.ts"],
"extends": [
'plugin:@typescript-eslint/eslint-recommended',
'plugin:@typescript-eslint/recommended',
],
"rules": {
"no-unused-vars": 0,
"@typescript-eslint/no-unused-vars": 2,
"func-call-spacing": 0,
"@typescript-eslint/func-call-spacing": 2,
"semi": 0,
"@typescript-eslint/semi": 2,
"@typescript-eslint/no-empty-function": 0,
"@typescript-eslint/no-use-before-define": 0,
// We have to use any on some types so the warning isn't valuable.
"@typescript-eslint/no-explicit-any": 0,
// We don't require explicit return types on basic functions or
// dummy functions in tests, for example
"@typescript-eslint/explicit-function-return-type": 0,
// We know it's bad and use it very sparingly but it's needed :(
"@typescript-eslint/ban-ts-ignore": 0,
"@typescript-eslint/array-type": [2, {
"default": "array-simple"
}]
}
}
]
};