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Rslint

    no-wrapper-object-types

    Configuration

    rslint.config.ts
    import { defineConfig, ts } from '@rslint/core';

export default defineConfig([
  ts.configs.recommended,
  {
    rules: {
      '@typescript-eslint/no-wrapper-object-types': 'error',
    },
  },
]);

    Rule Details

    Disallow using the upper-cased built-in primitive class wrappers — BigInt, Boolean, Number, Object, String, and Symbol — as type names. The lower-cased primitive forms (bigint, boolean, number, object, string, symbol) are the safe choice in every case: primitives are compared by value and have predictable truthiness, while the wrapper objects are compared by reference and are always truthy.

    A local declaration with the same name (a type alias, interface, or class) shadows the global wrapper, in which case the reference is no longer the unsafe built-in and is not reported.

    Examples of incorrect code for this rule:

    let myBigInt: BigInt;
let myBoolean: Boolean;
let myNumber: Number;
let myString: String;
let mySymbol: Symbol;
let myObject: Object;

class MyClass implements Number {}

interface MyInterface extends Number {}

    Examples of correct code for this rule:

    let myBigint: bigint;
let myBoolean: boolean;
let myNumber: number;
let myString: string;
let mySymbol: symbol;
let myObject: object;

type Number = 0 | 1;
let value: Number;

    Original Documentation