JSFiddle - React, Tailwind, and code Playground

HTML

<p>
  <button onclick="getStringWhenString('10206458857935881')" >getStringWhenString</button>
  <button onclick="getStringWhenNumber(10206458857935881)" >getStringWhenNumber</button>
</p>
<p>
  String : <strong id="ifString"></strong>
</p>
<p>
  Number : <strong id="ifNumber"></strong>
</p>

JavaScript

function getStringWhenString(numberString) {
  $("#ifString").text("" + numberString);
};

function getStringWhenNumber(numberString) {
  $("#ifNumber").text("" + numberString);
};