JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="TextBox1">   Doctor,<br>
I would   like to    have
    an appointment tomorrow morning.Please,call me! </textarea>

JavaScript

alert($("#TextBox1").text().replace(/(?:<br>|\s)+|([.,])(?=\S)(?!<br>)/g, '$1 ').replace(/^\s|\s$/g, ''))