Getting error `require is not defined` after browserify command

Getting error require is not defined

Uncaught ReferenceError: require is not defined
    at index.html:10:27
(anonymous) @ index.html:10

The command I am using is browserify index.js > browser.js

index.html

<html>
<head>
  <script src="../browser.min.js"></script>
</head>
<body>
  <div id="isbrowser"></div>
  <script>
    const { isBrowser } = require("../index.js");
    console.log(isBrowser());
  </script>
</body>
</html>

browser.min.js

!function n(o,i,u){function c(e,t){if(!i[e]){if(!o[e]){var r="function"==typeof require&&require;if(!t&&r)return r(e,!0);if(f)return f(e,!0);throw(t=new Error("Cannot find module '"+e+"'")).code="MODULE_NOT_FOUND",t}r=i[e]={exports:{}},o[e][0].call(r.exports,function(t){return c(o[e][1][t]||t)},r,r.exports,n,o,i,u)}return i[e].exports}for(var f="function"==typeof require&&require,t=0;t<u.length;t++)c(u[t]);return c}({1:[function(require,e,exports){!function(t){!function(){"use strict";e.exports.isBrowser=function(){return("object"!=typeof t||"function"!=typeof require)&&"function"!=typeof importScripts&&("object"==typeof window||void 0)}}.call(this)}.call(this,require("_process"))},{_process:2}],2:[function(require,t,exports){var r,n,t=t.exports={};function o(){throw new Error("setTimeout has not been defined")}function i(){throw new Error("clearTimeout has not been defined")}try{r="function"==typeof setTimeout?setTimeout:o}catch(t){r=o}try{n="function"==typeof clearTimeout?clearTimeout:i}catch(t){n=i}function u(e){if(r===setTimeout)return setTimeout(e,0);if((r===o||!r)&&setTimeout)return(r=setTimeout)(e,0);try{return r(e,0)}catch(t){try{return r.call(null,e,0)}catch(t){return r.call(this,e,0)}}}var c,f=[],s=!1,l=-1;function a(){s&&c&&(s=!1,c.length?f=c.concat(f):l=-1,f.length)&&h()}function h(){if(!s){for(var t=u(a),e=(s=!0,f.length);e;){for(c=f,f=[];++l<e;)c&&c[l].run();l=-1,e=f.length}c=null,s=!1,!function(e){if(n===clearTimeout)return clearTimeout(e);if((n===i||!n)&&clearTimeout)return(n=clearTimeout)(e);try{n(e)}catch(t){try{return n.call(null,e)}catch(t){return n.call(this,e)}}}(t)}}function p(t,e){this.fun=t,this.array=e}function e(){}t.nextTick=function(t){var e=new Array(arguments.length-1);if(1<arguments.length)for(var r=1;r<arguments.length;r++)e[r-1]=arguments[r];f.push(new p(t,e)),1!==f.length||s||u(h)},p.prototype.run=function(){this.fun.apply(null,this.array)},t.title="browser",t.browser=!0,t.env={},t.argv=[],t.version="",t.versions={},t.on=e,t.addListener=e,t.once=e,t.off=e,t.removeListener=e,t.removeAllListeners=e,t.emit=e,t.prependListener=e,t.prependOnceListener=e,t.listeners=function(t){return[]},t.binding=function(t){throw new Error("process.binding is not supported")},t.cwd=function(){return"/"},t.chdir=function(t){throw new Error("process.chdir is not supported")},t.umask=function(){return 0}},{}]},{},[1]);

browserify / browserify-handbook

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