chai
Version:
BDD/TDD assertion library for node.js and the browser. Test framework agnostic.
27 lines (24 loc) • 800 B
JavaScript
/*!
* Chai - getOwnEnumerablePropertySymbols utility
* Copyright(c) 2011-2016 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/
/**
* ### .getOwnEnumerablePropertySymbols(object)
*
* This allows the retrieval of directly-owned enumerable property symbols of an
* object. This function is necessary because Object.getOwnPropertySymbols
* returns both enumerable and non-enumerable property symbols.
*
* @param {object} obj
* @returns {Array}
* @namespace Utils
* @name getOwnEnumerablePropertySymbols
* @public
*/
export function getOwnEnumerablePropertySymbols(obj) {
if (typeof Object.getOwnPropertySymbols !== 'function') return [];
return Object.getOwnPropertySymbols(obj).filter(function (sym) {
return Object.getOwnPropertyDescriptor(obj, sym).enumerable;
});
}