Run results for: Test: CSS calc() with var() - 01

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

335/s

Percentage

298/s

var(unitless) + calc() + px

238/s

var(%)

204/s

var(unitless) + calc() + %

180/s

var(px)

135/s

View exact numbers

Test name	Executions per second
✓ px	335 Ops/sec
Percentage	298 Ops/sec
var(unitless) + calc() + px	238 Ops/sec
var(%)	204 Ops/sec
var(unitless) + calc() + %	180 Ops/sec
var(px)	135 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:

var(unitless) + calc() + %
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) * 1%))" }
var(%)
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(var(--translationPercent))" }
Percentage
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(100%)" }
var(unitless) + calc() + px
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(calc(var(--translation) * 1px))" }
px
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(100px)" }
var(px)
for (var i = 0; i < nodes.length; i++) { nodes[i].style = "transform: translateY(var(--translationPx))" }