Benchmark: document vs. var for document

HTML Preparation code:

<div id="test1"></div>
<div id="test2"></div>
<div id="test3"></div>
<div id="test4"></div>
<div id="test5"></div>

Tests:

document
document.getElementById('test1'); document.getElementById('test2'); document.getElementById('test3'); document.getElementById('test4'); document.getElementById('test5');
var for document
var d = document; d.getElementById('test1'); d.getElementById('test2'); d.getElementById('test3'); d.getElementById('test4'); d.getElementById('test5');

Rendered benchmark preparation results:

Previous results

Test case name	Result
document
var for document

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36 OPR/69.0.3686.57

Browser/OS: Opera 69 on Windows

Test name	Executions per second
document	552431.1 Ops/sec
var for document	1726772.0 Ops/sec

document vs. var for document (version: 0)