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Rslint

    no-bitwise

    Configuration

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

export default defineConfig([
  js.configs.recommended,
  {
    rules: {
      'no-bitwise': 'error',
    },
  },
]);

    Rule Details

    The use of bitwise operators in JavaScript is very rare and often & or | is simply a mistyped && or ||, which will lead to unexpected behavior.

    This rule disallows bitwise operators.

    Examples of incorrect code for this rule:

    var x = y | z;

var x = y & z;

var x = y ^ z;

var x = ~z;

var x = y << z;

var x = y >> z;

var x = y >>> z;

x |= y;

x &= y;

x ^= y;

x <<= y;

x >>= y;

x >>>= y;

    Examples of correct code for this rule:

    var x = y || z;

var x = y && z;

var x = y > z;

var x = y < z;

x += y;

    Options

    This rule accepts a single object option with the following properties:

    allow

    • Type: string[] (subset of "|", "&", "^", "<<", ">>", ">>>", "|=", "&=", "^=", "<<=", ">>=", ">>>=", "~")
    • Default: []

    Whitelists the listed bitwise operators as exceptions. Only operators exactly matching a string in this list are allowed; all others still report.

    Example configuration:

    { "no-bitwise": ["error", { "allow": ["~"] }] }

    Examples of correct code with the above configuration:

    ~[1, 2, 3].indexOf(1) === -1;

    int32Hint

    • Type: boolean
    • Default: false

    When true, permits the x | 0 idiom commonly used to coerce a number to a 32-bit integer. Only | with a literal 0 on the right-hand side is allowed — 0 | x, x & 0, x | 1, x | -0, and x | 0n still report.

    Example configuration:

    { "no-bitwise": ["error", { "int32Hint": true }] }

    Examples of correct code with the above configuration:

    var b = a | 0;

    Original Documentation