.eslintrc.json

{
    "extends": [
        "eslint:recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking",
        "plugin:@typescript-eslint/strict-type-checked",
        "plugin:@typescript-eslint/stylistic-type-checked",
        "plugin:ava/recommended",
        "plugin:unicorn/recommended"
    ],
    "env": {
        "browser": false
    },
    "parser": "@typescript-eslint/parser",
    "parserOptions": {
        "warnOnUnsupportedTypeScriptVersion": false,
        "ecmaVersion": "latest",
        "sourceType": "module",
        "project": true
    },
    "plugins": ["@typescript-eslint", "simple-import-sort", "eslint-plugin-ava", "unicorn"],
    "root": true,
    "rules": {
        "eqeqeq": "error",
        "no-constant-condition": "off",
        "no-inner-declarations": "off",
        "no-undef": "off",
        "no-unused-vars": "off",
        "no-restricted-globals": ["error", "console", "process", "Date"],
        "simple-import-sort/imports": "error",
        "simple-import-sort/exports": "error",
        "@typescript-eslint/no-import-type-side-effects": "error",
        // In theory good, but less good when declaring a new interface and
        // stopping to think about its contents.
        "@typescript-eslint/no-empty-interface": "off",
        "@typescript-eslint/no-namespace": "off",
        "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }],
        "@typescript-eslint/no-use-before-define": "off",
        "@typescript-eslint/no-explicit-any": "off",
        "@typescript-eslint/no-unsafe-argument": "off",
        "@typescript-eslint/no-unsafe-assignment": "off",
        "@typescript-eslint/no-unsafe-call": "off",
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/no-unsafe-return": "off",
        "@typescript-eslint/no-non-null-assertion": "off",
        "@typescript-eslint/no-empty-object-type": "off",
        "@typescript-eslint/require-await": "off",
        "@typescript-eslint/restrict-template-expressions": "off",
        "@typescript-eslint/naming-convention": [
            "error",
            {
                "selector": [
                    "classProperty",
                    "typeProperty",
                    "parameterProperty",
                    "classMethod",
                    "typeMethod",
                    "accessor"
                ],
                "modifiers": ["private"],
                "leadingUnderscore": "require",
                "format": ["camelCase"],
                "filter": {
                    "regex": "^(test_| )",
                    "match": false
                }
            },
            {
                "selector": [
                    "classProperty",
                    "typeProperty",
                    "parameterProperty",
                    "classMethod",
                    "typeMethod",
                    "accessor"
                ],
                "modifiers": ["protected"],
                "leadingUnderscore": "allow",
                "format": ["camelCase"],
                "filter": {
                    "regex": "^(test_| )",
                    "match": false
                }
            },
            {
                "selector": [
                    "classProperty",
                    "typeProperty",
                    "parameterProperty",
                    "classMethod",
                    "typeMethod",
                    "accessor"
                ],
                "modifiers": ["public"],
                "leadingUnderscore": "forbid",
                "format": ["camelCase"],
                "filter": {
                    "regex": "^(test_| )",
                    "match": false
                }
            }
        ],
        "@typescript-eslint/no-unnecessary-condition": ["error", {
            "allowConstantLoopConditions": true
        }],
        "unicorn/catch-error-name": "off",
        "unicorn/filename-case": "off",
        "unicorn/no-array-callback-reference": "off",
        "unicorn/no-await-expression-member": "off",
        "unicorn/no-useless-undefined": "off",
        "unicorn/prefer-top-level-await": "off", // Reenable once Node 12 is dropped.
        "unicorn/prevent-abbreviations": "off",
        "unicorn/switch-case-braces": "off",
        "unicorn/prefer-string-replace-all": "off" // Bad suggestion for old targets
    },
    "overrides": [
        { "files": ["Herebyfile.*", "**/__fixtures__/**"], "rules": { "no-restricted-globals": "off" } },
        {
            "files": ["**/__tests__/**"],
            "rules": {
                "@typescript-eslint/no-empty-function": "off",
                "no-restricted-globals": "off",
                "ava/no-import-test-files": "off"
            }
        }
    ],
    "ignorePatterns": ["**/dist/**", "**/node_modules/**", "bin/**", "coverage/**"]
}