Run results for: Vanilla JS, Cash and jQuery - GetID Speed Test

Test name	Executions per second
✓ getElementById	11,050,676 Ops/sec
getElementsByTagName	8,326,466 Ops/sec
getElementsByClassName	6,958,162 Ops/sec
querySelector (.id)	6,098,784 Ops/sec
Cash (#id)	5,040,012 Ops/sec
jQuery + getElementById	5,006,050 Ops/sec
jQuery (#id)	4,627,566 Ops/sec
Cash + getElementById	4,495,168 Ops/sec
querySelector (#id)	4,262,768 Ops/sec
querySelectorAll (.id)	3,045,331 Ops/sec
Cash (.id)	3,034,542 Ops/sec
Cash + getElementsByClassName	2,929,756 Ops/sec
querySelectorAll (#id)	2,679,044 Ops/sec
jQuery (.id)	2,631,563 Ops/sec
Cash (tag.id)	2,309,698 Ops/sec
Cash (tag#id)	1,932,334 Ops/sec
jQuery + getElementsByClassName	1,746,163 Ops/sec
jQuery (tag.id)	1,585,707 Ops/sec
jQuery (tag#id)	1,411,618 Ops/sec

Test name

Executions per second

✓ getElementById

11,050,676 Ops/sec

getElementsByTagName

8,326,466 Ops/sec

getElementsByClassName

6,958,162 Ops/sec

querySelector (.id)

6,098,784 Ops/sec

Cash (#id)

5,040,012 Ops/sec

jQuery + getElementById

5,006,050 Ops/sec

jQuery (#id)

4,627,566 Ops/sec

Cash + getElementById

4,495,168 Ops/sec

querySelector (#id)

4,262,768 Ops/sec

querySelectorAll (.id)

3,045,331 Ops/sec

Cash (.id)

3,034,542 Ops/sec

Cash + getElementsByClassName

2,929,756 Ops/sec

querySelectorAll (#id)

2,679,044 Ops/sec

jQuery (.id)

2,631,563 Ops/sec

Cash (tag.id)

2,309,698 Ops/sec

Cash (tag#id)

1,932,334 Ops/sec

jQuery + getElementsByClassName

1,746,163 Ops/sec

jQuery (tag.id)

1,585,707 Ops/sec

jQuery (tag#id)

1,411,618 Ops/sec

Tests:

getElementById
var el = document.getElementById("foo"); var className = el.className;
getElementsByClassName
var el = document.getElementsByClassName("foo2"); var className = el.className;
getElementsByTagName
var el = document.getElementsByTagName("div")[0]; var className = el.className;
querySelector (#id)
var el = document.querySelector('#foo'); var className = el.className;
querySelector (.id)
var el = document.querySelector('.foo2'); var className = el.className;
querySelectorAll (#id)
var el = document.querySelectorAll('#foo'); var className = el.className;
querySelectorAll (.id)
var el = document.querySelectorAll('.foo2'); var className = el.className;
Cash (#id)
var el = $("#foo"); var className = el.className;
Cash (.id)
var el = $(".foo2"); var className = el.className;
Cash (tag#id)
var el = $("div#foo"); var className = el.className;
Cash (tag.id)
var el = $("div.foo2"); var className = el.className;
Cash + getElementById
var el = $(document.getElementById("foo")); var className = el.className;
Cash + getElementsByClassName
var el = $(document.getElementsByClassName("foo2")); var className = el.className;
jQuery (#id)
var el = jQuery("#foo"); var className = el.className;
jQuery (.id)
var el = jQuery(".foo2"); var className = el.className;
jQuery (tag#id)
var el = jQuery("div#foo"); var className = el.className;
jQuery (tag.id)
var el = jQuery("div.foo2"); var className = el.className;
jQuery + getElementById
var el = jQuery(document.getElementById("foo")); var className = el.className;
jQuery + getElementsByClassName
var el = jQuery(document.getElementsByClassName("foo2")); var className = el.className;