JSFiddle - React, Tailwind, and code Playground
by zlojnaxa
HTML
<textarea rows="10" cols="25" class="textarea"></textarea>
<button class="button">Клац</button>
<div class="result"></div>
JavaScript
var result = document.querySelectorAll('.result')[0],button = document.querySelectorAll('.button')[0],textarea = document.querySelectorAll('.textarea')[0];
button.onclick = ()=> result.innerHTML = textarea.value.replace(new RegExp("\n","g"),"<br>");