I want to detect a specific word or multiple words within the user's entered text and reply accordingly. I plan to add more words to detect but for now I've been using this.
My result is finalKey.contains is not a function.

```html
<html>
<div>
  <p1 id="iOut"></p1>
</div>
<div>
  <input id="uIn" value=""></input>
</div>
<button onclick="regis()">SUBMIT</button>

<script>
  var key = document.getElementById("uIn").value;
  var finalKey = key.toUpperCase();

  function regis() {
    if (finalKey.contains("Hi" || "H")) {
      document.getElementById("iOut").innerHTML = "HEY";

    } else if (finalKey.contains("Bye" || "Goodbye")) {
      document.getElementById("iOut").innerHTML = "Okay";

    } else {
      document.getElementById("iOut").innerHTML = " Try again";
    }
  }
</script>

</html>
```