JSFiddle - React, Tailwind, and code Playground

HTML

<textarea >asdjsadasn sanasjn dajs njsan jdsan; jdasj jssajnd jas \n  askjdasj as \n lasj as\n asdasd as!

JavaScript

$(document).ready(function(){
    var textarea = $('textarea').val();
    var linebreak = textarea.split('\n');
    var length = linebreak.length;
    var data = [];
    console.log(length);
    for ( var i = 0 ; i<length ; i++){
          
        data.push({ 'line': i , 'content': linebreak[i] });
        console.log(data);
    }
});