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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36

Browser: Chrome 91

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
getBBox	53287.2 Ops/sec
getBoundingClientRect	48420.2 Ops/sec
getComputedTextLength	53909.6 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();