Run results for: tooltip get

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.54 Safari/537.36

Browser: Chrome 94

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
container from	113258.8 Ops/sec
from tooltips	43454.0 Ops/sec
from tooltips 2	79525.2 Ops/sec

HTML Preparation code:

<div class="js-tooltip-container">
  <button class="js-tooltip-opener" aria-controls="1">開く</button>
  <div id="1" class="js-tooltip"></div>
</div>
<div class="js-tooltip-container">
  <button class="js-tooltip-opener" aria-controls="2">開く</button>
  <div id="2" class="js-tooltip"></div>
</div>
<div class="js-tooltip-container">
  <button class="js-tooltip-opener" aria-controls="3">開く</button>
  <div id="3" class="js-tooltip"></div>
</div>
<div class="js-tooltip-container">
  <button class="js-tooltip-opener" aria-controls="4">開く</button>
  <div id="4" class="js-tooltip"></div>
</div>

Tests:

container from
class Tooltip { constructor(container) { this.container = container; this.opener = this.container.getElementsByClassName('js-tooltip-opener')[0]; this.self = this.container.getElementsByClassName('js-tooltip')[0]; } } const containers = Array.from(document.getElementsByClassName('js-tooltip-container')) containers.forEach(container =>new Tooltip(container))
from tooltips
class Tooltip { constructor(tooltip) { this.self = tooltip; const openers = Array.from(document.getElementsByClassName('js-tooltip-opener')) this.opener = openers.filter((opener) => opener.getAttribute(`[aria-controls="${this.self.id}"]`))[0]; } } const tooltips = Array.from(document.getElementsByClassName('js-tooltip')) tooltips.forEach(tooltip =>new Tooltip(tooltip))
from tooltips 2
class Tooltip { constructor(tooltip) { this.self = tooltip; this.opener = document.querySelector(`[aria-controls="${this.self.id}"]`)[0]; } } const tooltips = Array.from(document.getElementsByClassName('js-tooltip')) tooltips.forEach(tooltip =>new Tooltip(tooltip))

Run results for: tooltip get

container from

from tooltips

from tooltips 2