function uuid()

in x-test.js [46:50]

• 5 lines of code
• 1 McCabe index (conditional complexity)

function uuid() {
  return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
    (c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))).toString(16)
  );
}