JSFiddle - React, Tailwind, and code Playground

by KomathiKarunakaran

HTML

<html>
<head>
<title>Rich Text Editor</title>
<script type="text/javascript">
var oDoc, sDefTxt;

function initDoc() {
  oDoc = document.getElementById("textBox");
  sDefTxt = oDoc.innerHTML;
  if (document.compForm.switchMode.checked) { setDocMode(true); }
}

function formatDoc(sCmd, sValue) {
  if (validateMode()) { document.execCommand(sCmd, false, sValue); oDoc.focus(); }
}

function validateMode() {
  if (!document.compForm.switchMode.checked) { return true ; }
  alert("Uncheck \"Show HTML\".");
  oDoc.focus();
  return false;
}

function setDocMode(bToSource) {
  var oContent;
  if (bToSource) {
    oContent = document.createTextNode(oDoc.innerHTML);
    oDoc.innerHTML = "";
    var oPre = document.createElement("pre");
    oDoc.contentEditable = false;
    oPre.id = "sourceText";
    oPre.contentEditable = true;
    oPre.appendChild(oContent);
    oDoc.appendChild(oPre);
    document.execCommand("defaultParagraphSeparator", false, "div");
  } else {
    if (document.all) {
      oDoc.innerHTML = oDoc.innerText;
    } else {
      oContent = document.createRange();
      oContent.selectNodeContents(oDoc.firstChild);
      oDoc.innerHTML = oContent.toString();
    }
    oDoc.contentEditable = true;
  }
  oDoc.focus();
}

function printDoc() {
  if (!validateMode()) { return; }
  var oPrntWin = window.open("","_blank","width=450,height=470,left=400,top=100,menubar=yes,toolbar=no,location=no,scrollbars=yes");
  oPrntWin.document.open();
  oPrntWin.document.write("<!doctype html><html><head><title>Print<\/title><\/head><body onload=\"print();\">" + oDoc.innerHTML + "<\/body><\/html>");
  oPrntWin.document.close();
}
</script>
<style type="text/css">
.intLink { cursor: pointer; }
img.intLink { border: 0; }
#toolBar1 select { font-size:10px; }
#textBox {
  width: 540px;
  height: 200px;
  border: 1px #000000 solid;
  padding: 12px;
  overflow: scroll;
}
#textBox #sourceText {
  padding: 0;
  margin: 0;
  min-width: 498px;
  min-height: 200px;
}
#editMode label {...