js indexOf within Switch

https://stackoverflow.com/questions/22277447/indexof-within-switch

 switch (true) {
  case (msgRes.indexOf("hi") !=-1):
    botResponse.push("HELLO. "); break;
  case (msgRes.indexOf("how are you") !=-1):
    botResponse.push("I AM FINE. "); break;
  case (msgRes.indexOf("do you like pie") !=-1):
    botResponse.push("I CAN'T EAT. THANKS, ASSHAT. "); break;
  default:
    respond (botResponse);
    spamCount(id);
    break;
 }