JSFiddle - React, Tailwind, and code Playground
by imsky
HTML
<script src="https://raw.github.com/slevithan/XRegExp/master/xregexp-all.js"></script>
JavaScript
var text = "hello world foo\nbar hello world alice\nbob";
var regex = XRegExp("(?!foo)\n(?!bar)", "gs");
$("body").append(
$("<pre />").html(
XRegExp.replace(text, regex, "[linebreak]")));