JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://rawgit.com/tomalec/JSON-Patch/issues/65_ArrayObserve_shim/src/json-patch-duplex.js"></script>
<h1>See browser console</h1>

JavaScript

var original = [ {
  "name" : "name1",
  "roolNo" : "1"
}, {
  "name" : "name2",
  "roolNo" : "2"
}, {
  "name" : "name3",
  "roolNo" : "3"
}, {
  "name" : "name4",
  "roolNo" : "4"
} ];
var changed = original.slice(0);
changed.splice(1, 1);
  var sequence = jsonpatch.compare(original, changed);

console.log("patches sequence", sequence);