mam-project-templates/cloned/FreeCSS/Deft/node_modules/mongoose/lib/schema/operators/exists.js

my personal templating projects

'use strict';

/*!
 * ignore
 */

module.exports = function(val) {
  if (typeof val !== 'boolean') {
    throw new Error('$exists parameter must be a boolean!');
  }

  return val;
};