var $documentAll = require('../internals/document-all'); var documentAll = $documentAll.all; // `IsCallable` abstract operation // https://tc39.es/ecma262/#sec-iscallable module.exports = $documentAll.IS_HTMLDDA ? function (argument) { return typeof argument == 'function' || argument === documentAll; } : function (argument) { return typeof argument == 'function'; };