What this jquery is trying to do?

Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.Can someone explain me what this query function is trying to do.
    I am unable to understand this code.
     function d(t) {
      for (var e = 0, r = 0, s = ""; r < t.length; r++) {
       if (e = t.charCodeAt(r), h("54/52", "n") < e && e < h("57/49", "n")) e = e == h("54/53", "n") ? h("57/48", "n") : e - 1;
       else if (h("57/54", "n") < e && e < h("49/50/51", "n")) e = e == h("49/50/50", "n") ? h("57/55", "n") : e + 1;
       else if (h("52/55", "n") < e && e < h("53/51", "n")) switch (e) {
        case h("52/56", "n"):
         e = h("53/55", "n");
         break;
        case h("52/57", "n"):
         e = h("53/54", "n");
         break;
        case h("53/48", "n"):
         e = h("53/53", "n");
         break;
        case h("53/49", "n"):
         e = h("53/52", "n");
         break;
        case h("53/50", "n"):
         e = h("53/51", "n")
       } else h("53/50", "n") < e && e < h("53/56", "n") ? e = Math.round(h(e.toString()) / 2).toString().charCodeAt(0) : e == h("52/53", "n") && (e = h("57/53", "n"));
       s += String.fromCharCode(e)
      }
      return s
     }

    I am unable to understand what this function is trying to do.

I am unable to understand this jquery.

 function d(t) {
  for (var e = 0, r = 0, s = ""; r < t.length; r++) {
   if (e = t.charCodeAt(r), h("54/52", "n") < e && e < h("57/49", "n")) e = e == h("54/53", "n") ? h("57/48", "n") : e - 1;
   else if (h("57/54", "n") < e && e < h("49/50/51", "n")) e = e == h("49/50/50", "n") ? h("57/55", "n") : e + 1;
   else if (h("52/55", "n") < e && e < h("53/51", "n")) switch (e) {
    case h("52/56", "n"):
     e = h("53/55", "n");
     break;
    case h("52/57", "n"):
     e = h("53/54", "n");
     break;
    case h("53/48", "n"):
     e = h("53/53", "n");
     break;
    case h("53/49", "n"):
     e = h("53/52", "n");
     break;
    case h("53/50", "n"):
     e = h("53/51", "n")
   } else h("53/50", "n") < e && e < h("53/56", "n") ? e = Math.round(h(e.toString()) / 2).toString().charCodeAt(0) : e == h("52/53", "n") && (e = h("57/53", "n"));
   s += String.fromCharCode(e)
  }
  return s
 }

Can anyone explain me this jquery. Can anyone of you explain its use.

Can anyone explain me this jquery. Can anyone of you explain its use. Can anyone explain me this jquery. Can anyone of you explain its use.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.Can someone explain me what this query function is trying to do. I am unable to understand this code.