I want to disable the submit button if the text area is empty. I have initialized the submit button to disable condition and written bellow codes. But after typing text inside text area, it not got enable condition. Below are the codes. I have tried with If…else…condition also

<form id="breakdown">
    <textarea id="tbd" placeholder="Enter breakdown details"></textarea>
    <br>
    <input type="submit" id="btn10" value="submit" disabled>
  </form>

function disableEnableSubmitButton () {

      let textarea1 = document.getElementById("tbd").value;
      textarea1.addEventListener("input",change);
      }

      function change () {
        document.getElementById("btn10").disabled = false;
      }