Run results for: Test: CSS calc() with var() - 02

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 months ago

Test name	Executions per second
calc() * 2	1038.6 Ops/sec
calc() * 0.5	1008.9 Ops/sec
calc() * -0.5	1000.2 Ops/sec
calc() / 2	984.8 Ops/sec

HTML Preparation code:

<section id="section"></section>

Script Preparation code:

const section = document.getElementById("section");

section.style.setProperty('--translation', '100');
section.style.setProperty('--translationPx', '100px');
section.style.setProperty('--translationPercentage', '100%');


for (var i = 0; i < 1000; i++) {
    const newDiv = document.createElement("div");
    const text = document.createTextNode(`${i}`);
    newDiv.appendChild(text);
    section.appendChild(newDiv);
}

var nodes = document.querySelectorAll("div");

Tests:

calc() * 2
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) * 2))" }
calc() * 0.5
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) * 0.5))" }
calc() * -0.5
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) * -0.5))" }
calc() / 2
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) / 2))" }

Run results for: Test: CSS calc() with var() - 02

Test difference in performance with calc() and var() functions compared with simple units. Test on unitless, percentage and absolute values.

calc() * 2

calc() * 0.5

calc() * -0.5

calc() / 2