export const createUUID = () => {
    let dt = new Date().getTime();
    const uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
        const r = (dt + Math.random()*16)%16 | 0;
        dt = Math.floor(dt/16);
        return (c==='x' ? r :(r&0x3|0x8)).toString(16);
    });

    return uuid;
};