Run results for: getBBox() vs getBoundingClientRect() vs getComputedTextLength()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0

Browser: Firefox 122

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

getComputedTextLength

1.5M/s

getBBox

995K/s

getBoundingClientRect

617K/s

View exact numbers

Test name	Executions per second
✓ getComputedTextLength	1,530,876 Ops/sec
getBBox	995,397 Ops/sec
getBoundingClientRect	616,573 Ops/sec

HTML Preparation code:

<svg width="150" height="150">
	<text id="test1" y="50">test1</text>
	<text id="test2" y="100">
		<tspan id="test3">test3</tspan>	
	</text>
	<tspan id="test4">test4</tspan>
</svg>

Script Preparation code:

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

Tests:

getBBox
test1.getBBox().width; test2.getBBox().width; test3.getBBox().width; test4.getBBox().width;
getBoundingClientRect
test1.getBoundingClientRect().width; test2.getBoundingClientRect().width; test3.getBoundingClientRect().width; test4.getBoundingClientRect().width;
getComputedTextLength
test1.getComputedTextLength(); test2.getComputedTextLength(); test3.getComputedTextLength(); test4.getComputedTextLength();