code: function(s) {
      /* I figured global was faster.   */
      let md5blks = [],
        i; /* Andy King said do it this way. */
      for (i = 0; i < 64; i += 4) {
        md5blks[i >> 2] =
          s.charCodeAt(i) +
          (s.charCodeAt(i + 1) << 8) +
          (s.charCodeAt(i + 2) << 16) +
          (s.charCodeAt(i + 3) << 24);
      }
      return md5blks;
    }
docs: /* there needs to be support for Unicode here,
  unless we pretend that we can redefine the MD-5
  algorithm for multi-byte characters (perhaps
  by adding every four 16-bit characters and
  shortening the sum to 32 bits). Otherwise
  I suggest performing MD-5 as if every character
  was two bytes--e.g., 0040 0025 = @%--but then
  how will an ordinary MD-5 sum be matched?
  There is no way to standardize text to something
  like UTF-8 before transformation; speed cost is
  utterly prohibitive. The JavaScript standard
  itself needs to look at this: it should start
  providing access to strings as preformed UTF-8
  8-bit unsigned value arrays.