JSFiddle - React, Tailwind, and code Playground
by neilime
HTML
<textarea id="test">hello
hello
hello
jkjkj
</textarea >
JavaScript
eTextArea= document.id('test');
var eTmpDiv = new Element('div',{'html':eTextArea.get('value').trim()});
var oRegExp = new RegExp('\n','g');
var aMatches = oRegExp.exec(eTmpDiv.get('text').trim());
console.log(eTmpDiv.get('text').trim(),aMatches);