'use strict'; var KeyForSymbol = require('./KeyForSymbol'); var Type = require('./Type'); // https://262.ecma-international.org/14.0/#sec-canbeheldweakly module.exports = function CanBeHeldWeakly(v) { if (Type(v) === 'Object') { return true; // step 1 } if (Type(v) === 'Symbol' && typeof KeyForSymbol(v) === 'undefined') { return true; // step 2 } return false; // step 3 };