.eslintrc.json

{
    "root": true,
    "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "plugin:svelte/recommended", "prettier"],
    "parser": "@typescript-eslint/parser",
    "plugins": ["@typescript-eslint"],
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 2020,
        "extraFileExtensions": [".svelte"]
    },
    "env": { "browser": true },
    "overrides": [
        {
            "files": ["*.svelte"],
            "parser": "svelte-eslint-parser",
            "parserOptions": { "parser": "@typescript-eslint/parser" }
        }
    ],
    "rules": {
        "no-constant-binary-expression": "error",
        "no-constructor-return": "error",
        "no-duplicate-imports": "error",
        "no-new-native-nonconstructor": "error",
        "no-promise-executor-return": "error",
        "no-self-assign": "off",
        "no-self-compare": "error",
        "no-template-curly-in-string": "error",
        "no-unmodified-loop-condition": "error",
        "no-unreachable-loop": "error",
        "no-unused-private-class-members": "error",
        "no-use-before-define": "error",
        "require-atomic-updates": "error",
        "block-scoped-var": "error",
        "class-methods-use-this": "error",
        "consistent-this": ["error", "self"],
        "curly": ["error", "multi"],
        "default-case": "error",
        "dot-notation": "error",
        "eqeqeq": "error",
        "func-style": ["error", "declaration"],
        "init-declarations": "error",
        "logical-assignment-operators": "error",
        "new-cap": "error",
        "no-alert": "warn",
        "no-array-constructor": "error",
        "no-caller": "error",
        "no-console": "warn",
        "no-else-return": "error",
        "no-empty-function": "error",
        "no-empty-static-block": "error",
        "no-eq-null": "error",
        "no-eval": "error",
        "no-extend-native": "error",
        "no-extra-bind": "error",
        "no-implicit-coercion": "error",
        "no-implicit-globals": "error",
        "no-implied-eval": "error",
        "no-invalid-this": "off",
        "no-iterator": "error",
        "no-label-var": "error",
        "no-lone-blocks": "error",
        "no-lonely-if": "error",
        "no-loop-func": "error",
        "no-nested-ternary": "warn",
        "no-new": "error",
        "no-new-func": "error",
        "no-new-object": "error",
        "no-new-wrappers": "error",
        "no-proto": "error",
        "no-return-assign": "error",
        "no-return-await": "error",
        "no-script-url": "error",
        "no-sequences": "error",
        "no-throw-literal": "error",
        "no-undef-init": "error",
        "no-undefined": "error",
        "no-unneeded-ternary": "error",
        "no-unused-expressions": "error",
        "no-useless-call": "error",
        "no-useless-computed-key": "error",
        "no-useless-concat": "error",
        "no-useless-constructor": "error",
        "no-useless-rename": "error",
        "no-var": "error",
        "no-void": "error",
        "operator-assignment": "error",
        "prefer-arrow-callback": "warn",
        "prefer-const": "error",
        "prefer-destructuring": "error",
        "prefer-exponentiation-operator": "warn",
        "prefer-named-capture-group": "error",
        "prefer-numeric-literals": "error",
        "prefer-object-has-own": "error",
        "prefer-object-spread": "error",
        "prefer-rest-params": "error",
        "prefer-spread": "error",
        "prefer-template": "error",
        "radix": "error",
        "require-await": "error",
        "sort-imports": "error",
        "spaced-comment": ["warn", "always", { "markers": ["/"] }],
        "yoda": ["warn", "never", { "exceptRange": true }]
    }
}