function returnCache(cache) {
	let text = '';

	for (const key in cache) {
		if (!cache.hasOwnProperty(key)) {
			continue;
		}

		text += cache[key];
	}

	return text;
}
function returnCache(cache) {
	let text = '';

	for (const key in cache) {
		if (!cache.hasOwnProperty(key)) {
			continue;
		}

		text += cache[key];
	}

	return text;
}
function returnCache ( cache ) { let text = '' ; for ( const key in cache ) { if ( ! cache . hasOwnProperty ( key ) ) { continue ; } text += cache [ key ] ; } return text ; }
Returns a cache string by an object

@param {?} cache - cache object
@return {string}
Returns a cache string by an object