#no-accidental-bitwise-operator

#Configuration

import { defineConfig, unicornPlugin } from '@rslint/core';

export default defineConfig([
  unicornPlugin.configs.recommended,
  {
    rules: {
      'unicorn/no-accidental-bitwise-operator': 'error',
    },
  },
]);

#Rule Details

Disallow bitwise operators where a logical operator was likely intended. The rule reports & when an identifier is followed by a property access on the same identifier, such as object & object.property. It also reports | and |= when the right operand is a string, template literal, boolean, array, object, class, or function expression used as an apparent fallback.

#Incorrect

if (object & object.property) {
  use(object.property);
}

options = options | {};
input |= '';

#Correct

if (object && object.property) {
  use(object.property);
}

options = options || {};
input ||= '';

const masked = flags & MASK;
const truncated = value | 0;

#Suggestions

Editor suggestions replace the operator with &&, ||, or ||= and add parentheses when needed to preserve how the surrounding operators group. Review each suggestion before applying it because logical operators short-circuit and can change runtime behavior.

#Options

This rule has no options.

#Original Documentation

• Upstream rule documentation
• Upstream rule source