Run results for: Dom benchmark

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Browser: Chrome 56

Operating system: Mac OS X 10.12.3

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
one-liner found	1559664.4 Ops/sec
if breakout found	1547997.6 Ops/sec
one-liner not found	1546933.1 Ops/sec
if breakout not found	1549843.2 Ops/sec
single found	1426570.8 Ops/sec

HTML Preparation code:

<div id="i1">
  <div id="i2">
    <div id="i4" class="c1">
      <div class="c5">
        <div class="c4">

        </div>
        <div class="c5">

        </div>
      </div>
    </div>
    <div class="c7">
      <div class="c6">

      </div>
    </div>
    <div id="i3" class="c2">
      <div class="c3">
        <div class="c4">
          <div class="c8">
            <span>
				Find me
            </span>
          </div>
        </div>
        <div class="c5">

        </div>
      </div>
    </div>
  </div>
</div>

Script Preparation code:

function test1() {
  return document.getElementById('i3').querySelector('span');
}

function test2() {
  var e = document.getElementById('i3');
  return e ? e.querySelector('span') : null;
}

function test3() {
  return document.getElementById('i4').querySelector('span');
}

function test4() {
  var e = document.getElementById('i4');
  return e ? e.querySelector('span') : null;
}

function test5() {
  return document.querySelector('span');
}

Tests:

one-liner found
var r = test1();
if breakout found
var r = test2();
one-liner not found
var r = test3();
if breakout not found
var r = test4();
single found
var r = test5();

Run results for: Dom benchmark

one-liner found

if breakout found

one-liner not found

if breakout not found

single found