Run results for: Element creation speed

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Programmatic Element creation	49690.5 Ops/sec
jQuery Element creation	15321.5 Ops/sec
Custom Method: HTMLElement.From()	32372.3 Ops/sec
DOMParser	8443.9 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://code.jquery.com/jquery-3.2.1.min.js"></script>

Script Preparation code:

Object.defineProperty(HTMLElement, 'From', {
  enumerable: false,
  value: (function (doc, rgx) {
    //https://www.measurethat.net/Benchmarks/Show/2149/0/element-creation-speed
    return function CreateElementFromHTML(html) {
      html = html.trim();
      var bodystart = html.indexOf('>') + 1, bodyend = html.lastIndexOf('<');
      var elemStart = html.substr(0, bodystart);
      var innerHTML = html.substr(bodystart, bodyend - bodystart);
      rgx.lastIndex = 0;
      var elem = doc.createElement(rgx.exec(elemStart)[4]);
      var match; while ((match = rgx.exec(elemStart))) {
        if (match[1] === undefined) {
          elem.setAttribute(match[4], "");
        } else {
          elem.setAttribute(match[1], match[3]);
        }
      }
      elem.innerHTML = innerHTML;
      return elem;
    };
  }(window.document, /(\S+)=(["'])(.*?)(?:\2)|(\w+)/g))
});

var domParser = new DOMParser();

Tests:

Programmatic Element creation
var arr = Array(2); var el = document.createElement('link'); el.id='reddit_css'; el.type='text/css'; el.rel='stylesheet'; el.setAttribute('data-srcprop', 'href'); el.setAttribute('data-src', 'sites/reddit/zinject.reddit.css'); el.async = true; el.defer = true; arr[0] = el; el = document.createElement('div'); el.id = 'somevalue'; el.className = 'sidebar'; el.innerHTML = `<div class='sb-handle'></div><div class='sb-track'></div>`; arr[1] = el; return arr;
jQuery Element creation
var arr = Array(2); arr[0] = $(`<link id="reddit_css" type="text/css" rel="stylesheet" async defer data-srcprop="href" data-src="sites/reddit/zinject.reddit.css">`); arr[1] = $(`<div id='somevalue' class='sidebar'><div class='sb-handle'></div><div class='sb-track'></div></div>`); return arr;
Custom Method: HTMLElement.From()
var arr = Array(2); arr[0] = HTMLElement.From(`<link id="reddit_css" type="text/css" rel="stylesheet" async defer data-srcprop="href" data-src="sites/reddit/zinject.reddit.css">`); arr[1] = HTMLElement.From(`<div id='somevalue' class='sidebar'><div class='sb-handle'></div><div class='sb-track'></div></div>`); return arr;
DOMParser
var arr = Array(2); var doc = domParser.parseFromString(`<link id="reddit_css" type="text/css" rel="stylesheet" async defer data-srcprop="href" data-src="sites/reddit/zinject.reddit.css">`, 'text/html'); arr[0] = doc.head.removeChild(doc.head.firstElementChild); doc = domParser.parseFromString(`<div id='somevalue' class='sidebar'><div class='sb-handle'></div><div class='sb-track'></div></div>`, 'text/html'); arr[1] = doc.body.removeChild(doc.body.firstElementChild); return arr;

Run results for: Element creation speed

Speed of different methods to create elements.

Programmatic Element creation

jQuery Element creation

Custom Method: HTMLElement.From()

DOMParser