node-input-validator/src/rules/boolean.js

validation library for nodejs, inspired by laravel.

module.exports = async function boolean(field, value, args) {
  if (!args) {
    args = [true, false, 'true', 'false', 0, 1, '0', '1'];
  }

  if (args.indexOf(value) >= 0) {
    return true;
  }

  return false;
};