JSFiddle - React, Tailwind, and code Playground

JavaScript

function hi() {
  var a = {};
  a.hello = [];
  for (var i = 0; i <= 2000000; i++) {
    a.hello.push(i);
  }
}
var tt = [];
for (var ii = 0; ii < 100; ii++) {
    var t = new Date().getTime();
    hi();
    tt.push(new Date().getTime() - t);
}
var total = 0;
for (var iii = 0, len = tt.length; iii < len; iii++) {
    total += tt[iii];
}
console.log('Clear: ', total/tt.length, 'ms');

function _0x4c2747(){var _0x47b07c={};_0x47b07c['hello']=[];for(var _0x3d96bd=0x0;_0x3d96bd<=0x1e8480;_0x3d96bd++){_0x47b07c['hello']['push'](_0x3d96bd);}}var _0x1e4929=[];for(var _0x30b627=0x0;_0x30b627<0x64;_0x30b627++){var _0x16ca37=new Date()['getTime']();_0x4c2747();_0x1e4929['push'](new Date()['getTime']()-_0x16ca37);}var _0xafbf5e=0x0;for(var _0xa20f0c=0x0,_0x49c199=_0x1e4929['length'];_0xa20f0c<_0x49c199;_0xa20f0c++){_0xafbf5e+=_0x1e4929[_0xa20f0c];}console['log']('Compact:\x20',_0xafbf5e/_0x1e4929['length'],'ms');

var _0x0119=['getTime','length','log','Encoding\x20OFF:\x20','hello','push'];(function(_0x4709c0,_0x3396c7){var _0x13348b=function(_0x426235){while(--_0x426235){_0x4709c0['push'](_0x4709c0['shift']());}};_0x13348b(++_0x3396c7);}(_0x0119,0x130));var _0x9011=function(_0x2641f9,_0x26715f){_0x2641f9=_0x2641f9-0x0;var _0x585741=_0x0119[_0x2641f9];return _0x585741;};function _0x8bc3e2(){var _0x43fc1a={};_0x43fc1a[_0x9011('0x0')]=[];for(var _0x47876e=0x0;_0x47876e<=0x1e8480;_0x47876e++){_0x43fc1a[_0x9011('0x0')][_0x9011('0x1')](_0x47876e);}}var _0x6eb9e=[];for(var _0x31c2af=0x0;_0x31c2af<0x64;_0x31c2af++){var _0x8c09bb=new Date()[_0x9011('0x2')]();_0x8bc3e2();_0x6eb9e[_0x9011('0x1')](new Date()[_0x9011('0x2')]()-_0x8c09bb);}var _0x542017=0x0;for(var _0x425d88=0x0,_0x1ba074=_0x6eb9e[_0x9011('0x3')];_0x425d88<_0x1ba074;_0x425d88++){_0x542017+=_0x6eb9e[_0x425d88];}console[_0x9011('0x4')](_0x9011('0x5'),_0x542017/_0x6eb9e[_0x9011('0x3')],'ms');

var _0x5988=['bGVuZ3Ro','bG9n','RW5jb2RpbmcgQkFTRTY0OiA=','aGVsbG8=','cHVzaA==','Z2V0VGltZQ=='];(function(_0xe9d5d5,_0x51a705){var...