custom max value for range slider in javascript code example

Example: can't modify range value js

<form>
  <div>
    <input id="rangeInput" type="range" min="0" max="200" oninput="amount.value=rangeInput.value" />
    <input id="amount" type="number" value="100" min="0" max="200" oninput="rangeInput.value=amount.value" />
  </div>
</form>