'use strict';
  
  var crypto = typeof window === 'object' && (window.crypto || window.msCrypto); // IE 11 uses window.msCrypto
  
  function randomByte() {
      if (!crypto || !crypto.getRandomValues) {
          return Math.floor(Math.random() * 256) & 0x30;
      }
      var dest = new Uint8Array(1);
      crypto.getRandomValues(dest);
      return dest[0] & 0x30;
  }
  
  module.exports = randomByte;