ohif-viewer/platform/core/src/utils/guid.js

/**
 * Create a random GUID
 *
 * @return {string}
 */
const guid = () => {
  const getFourRandomValues = () => {
    return Math.floor((1 + Math.random()) * 0x10000)
      .toString(16)
      .substring(1);
  };
  return (
    getFourRandomValues() +
    getFourRandomValues() +
    '-' +
    getFourRandomValues() +
    '-' +
    getFourRandomValues() +
    '-' +
    getFourRandomValues() +
    '-' +
    getFourRandomValues() +
    getFourRandomValues() +
    getFourRandomValues()
  );
};

export default guid;