export function parseQueryParams(queryString) {
	if (queryString === '') return {};
	const parts = queryString.split('?').pop().split('&').map(function(p) {
		return p.split('=');
	});

	const params = {};
	parts.forEach(function(arr) {
		params[arr[0]] = arr[1];
	});
	return params;
}

export function toQueryString(params) {
	if (!params) return '';

	const parts = [];
	for (const key in params) {
		if (params.hasOwnProperty(key) && params[key]) {
			parts.push(key + '=' + params[key]);
		}
	}
	return parts.join('&');
}