function parseQueryString(queryString, defaultParams) {
    const params = new URLSearchParams(queryString);
    console.log(params);
    if (!params.size) {
        return defaultParams;
    }

    const result = {};
    for (const [key, value] of params.entries()) {
        result[decodeURIComponent(key)] = decodeURIComponent(value);
    }
    return result;
}

function getParams() {
    if (!window.params) {
        const params_hash = location.hash.replace('#', '');

        window.params = parseQueryString(params_hash, { '': '' });
    }
    return window.params;
}

function getRandomStr() {
    return `${Math.random()}`.replace('0.', '');
}

function getLists() {
    return localStorage.getItem('lists') || { '_default': { name: '_default' } };
}

function createList(listName) {
    let lists = getLists()
    if (listName === '_default') return;
    const listId = getRandomStr();
    lists[listId] = {
        name: listName
    }
    localStorage.setItem('lists', JSON.stringify(lists));
}