innerHTML vs removeChild

JavaScript performance comparison

Revision 23 of this test case created

Info

what method for empty a element is faster ?

Preparation code

<div id='box'></div>
<script>
Benchmark.prototype.setup = function() {
    var box = document.getElementById('box');
    box.innerHTML = '<h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div><h1>this is a heading<h1><div id="wrapper">Here is some cmmon content that you might find in a website</div><p>qesdafsdafdsa<p>testasingsda<p>tesa</p><h4>here is some more content<h4><h3>asdf</h3><div>more content</div>';
};
</script>

Preparation code output

Test runner

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Testing in unknown unknown
Test Ops/sec
removeChild
while (box.firstChild) {
  box.removeChild(box.firstChild);
}
pending…
removeChild 2
while (box.lastChild) {
  box.removeChild(box.lastChild);
}
pending…
innerHTML
box.innerHTML = '';
pending…
removeEntire
var pn = box.parentNode;
pn.removeChild(box);
var box = document.createElement('div');
box.id = 'box';
pn.appendChild(box);
pending…
textContent
box.textContent = "";
pending…

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