module.exports = {

extends: [

// https://eslint.org/docs/rules/

"eslint:recommended",

// https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/src/configs/recommended.json

"plugin:@typescript-eslint/recommended",

// https://prettier.io/docs/en/eslint.html

"plugin:prettier/recommended",

// https://github.com/benmosher/eslint-plugin-import

"plugin:import/recommended",

"plugin:import/typescript",

],

plugins: [],

parser: "@typescript-eslint/parser",

parserOptions: {

project: "./tsconfig.json",

},

settings: {},

rules: {

"no-undef": "off", // useless in TypeScript

"no-constant-condition": ["warn", { checkLoops: false }],

"no-useless-escape": "warn",

"no-console": "warn",

"no-var": "warn",

"valid-typeof": "warn", // "bigint" is not yet supported

"no-return-await": "warn",

// "prefer-const": "warn", // TODO: AssemblyScript has different semantics.

"guard-for-in": "warn",

"curly": "warn",

"no-param-reassign": "warn",

"prefer-spread": "off",

"import/no-unresolved": "off", // cannot handle `paths` in tsconfig

"import/no-cycle": "error",

"import/no-default-export": "error",

"@typescript-eslint/no-unused-vars": "warn",

"@typescript-eslint/array-type": ["warn", { default: "generic" }],

"@typescript-eslint/camelcase": "warn",

"@typescript-eslint/class-name-casing": "warn", // to allow the initial underscore

"@typescript-eslint/no-non-null-assertion": "warn", // NOTE: pay attention to it because it may cause unexpected behavior

"@typescript-eslint/prefer-for-of": "warn",

"@typescript-eslint/prefer-includes": "warn",

"@typescript-eslint/prefer-string-starts-ends-with": "warn",

"@typescript-eslint/prefer-readonly": "warn",

"@typescript-eslint/prefer-regexp-exec": "warn",

"@typescript-eslint/no-use-before-define": "warn",

"@typescript-eslint/await-thenable": "warn",

"@typescript-eslint/no-for-in-array": "warn",

"@typescript-eslint/prefer-nullish-coalescing": "warn",

"@typescript-eslint/prefer-optional-chain": "warn",

"@typescript-eslint/no-extra-non-null-assertion": "warn",

"@typescript-eslint/restrict-plus-operands": ["warn", { "checkCompoundAssignments": true } ],

"@typescript-eslint/indent": "off",

"@typescript-eslint/no-explicit-any": "off",

"@typescript-eslint/explicit-function-return-type": "off",

"@typescript-eslint/explicit-member-accessibility": "off",

"@typescript-eslint/no-object-literal-type-assertion": "off",

"@typescript-eslint/no-empty-interface": "off",

"@typescript-eslint/no-parameter-properties": "off",

"@typescript-eslint/no-var-requires": "off", // enforces `import x = require("x")`, which is TypeScript-specific

"@typescript-eslint/prefer-interface": "off",

"@typescript-eslint/no-empty-function": "off",

"prettier/prettier": "warn",

},

};