JSFiddle - React, Tailwind, and code Playground
HTML
<p id="saf">jkdfb <br>
kjsdfbkjas
asdkjfb<br>
asddkjg
<br>
sdgkjhb
sddgkjb
<br>
sgldjbb
slkdghj
<br>
s;dlvgj laskjfd lsjkdgv
lskkjdfg ;jklsdgv
</p>
JavaScript
$(document).ready(function(){
var b = $("#saf").text().replace(/\r\n/g, '');
//var bbb = b.replace(/\s+/g, '');
$("#saf").text(b);
});