@react-awesome-query-builder/core/esm/utils/uuid.js

User-friendly query builder for React. Core

// Had to make uuid use a constant seed so it would generate same sequence across runs. This was needed
// so server side rendering and client side rendering yield same results (e.g. the uuid is used when rendering
// the concunctions with their name and id)
var query_builder_seed = 0;
export default (function () {
  // Generate a random GUID http://stackoverflow.com/a/2117523.
  var timePart = (new Date().getTime().toString(16) + "FF").substr(0, 11);
  var s = "ssssssss-xxxx-4xxx-yxxx-x".replace(/[xys]/g, function (c) {
    var r = c === "s" ? Math.floor(Math.random() * 16) : query_builder_seed++ & 0xf;
    var v = c === "x" ? r : r & 0x3 | 0x8;
    return v.toString(16);
  });
  return s + timePart;
});