Function s4

src/utils.js:6–9

Generates 4 random hex digits * @returns {string} 4 Random hex digits

()

 * @returns {string} 4 Random hex digits
*/
function s4() {
  const rand = (1 + Math.random()) * 0x10000;
  return (rand | 0).toString(16).substring(1)
}

/** Generate a pseudo-guid
 * @returns {string} A GUID-like string.