Benchmark: Date.now() vs new Date() vs performance.now() vs delta loop variants.

Script Preparation code:

const HIGHLY_RANDOM = 436934
const fatslab = new Uint8Array()

Tests:

Date.now()
Date.now()
new Date()
new Date()
performance.now()
performance.now()
Date.now() delta loop
const start = Date.now() for (let i = 0; i < HIGHLY_RANDOM; i += 1) { fatslab[i % 256] = Date.now() - start } const end = Date.now() - start
new Date.now() delta loop
const start = new Date for (let i = 0; i < HIGHLY_RANDOM; i += 1) { fatslab[i % 256] = new Date - start } const end = new Date - start
performance.now() delta loop
const start = performance.now() for (let i = 0; i < HIGHLY_RANDOM; i += 1) { fatslab[i % 256] = performance.now() - start } const end = performance.now() - start

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser/OS: Firefox 142 on Linux

Related benchmarks:

Date.now() vs new Date() vs performance.now() vs delta loop variants. (version: 1)