JSFiddle - React, Tailwind, and code Playground

HTML

<div id='myDiv'></div>

JavaScript

var str = '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n{"text": true, ["text", "text", "text", "text"], [{ "text", "text" }]}\n\n\n'
var indexOfStr = str.replace(/\\\//g, "/");

var myDiv = document.getElementById('myDiv');

myDiv.textContent = indexOfStr;