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Run results for:
new empty object vs constant vs frozen constant
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=538758" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.5.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
empty
136276.9 Ops/sec
constant
51202.5 Ops/sec
frozen
47927.4 Ops/sec
fn new
138993.4 Ops/sec
fn constant
46238.8 Ops/sec
fn frozdn
44595.8 Ops/sec
Script Preparation code:
var empty={}; var frozen=Object.freeze({}); var fnNew=()=>({}); var fnConstant=()=>empty; var fnFrozen=()=>frozen;
Tests:
empty
const arr=new Array(500).fill().map(()=>({}));
constant
const arr=new Array(500).fill().map(()=>empty);
frozen
const arr=new Array(500).fill().map(()=>frozen);
fn new
const arr=new Array(500).fill().map(fnNew);
fn constant
const arr=new Array(500).fill().map(fnConstant);
fn frozdn
const arr=new Array(500).fill().map(fnFrozen);