Benchmark: frozen and normal object

Script Preparation code:

const baseObj = Object.fromEntries(Array.from({ length: 1000 }, () => Math.random().toString(16).slice(2)).map((elem, i) => [i.toString(), elem]))

var obj = Object.assign({}, baseObj);
var frozen = Object.freeze(Object.assign({}, baseObj));

function getElem(obbj, elem) {
  return obbj[elem];
};

Tests:

frozen
for (let i = 0; i < 100000; i++) { getElem(frozen, (i % 10).toString()) }
normal
for (let i = 0; i < 100000; i++) { getElem(obj, (i % 10).toString()) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
frozen
normal

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Linux

View result in a separate tab

Test name	Executions per second
frozen	238.6 Ops/sec
normal	248.0 Ops/sec

Related benchmarks:

obj creation
Object freeze vs normal obj access
Map vs object copying
Freeze vs no freeze

frozen and normal object (version: 0)

Comparing performance of: frozen vs normal

Created: one year ago by: Guest

Jump to the latest result

frozen

normal

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A