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Run results for:
Copy object using reduce Object.entries vs Object.keys + extra check for loop
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 YaBrowser/24.10.0.0 Safari/537.36
Browser:
Yandex Browser 24
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Reduce using Object.entries
5571882.0 Ops/sec
Reduce using Object.keys
15454313.0 Ops/sec
Object.keys and for loop
15534380.0 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
var params = {a: 1, b: 2, c: 3, d: 4};
Tests:
Reduce using Object.entries
const p = Object.entries(params).reduce((acc, [key, value]) => { acc[key] = value; return acc; }, {});
Reduce using Object.keys
const p = Object.keys(params).reduce((acc, key) => { acc[key] = params[key]; return acc; }, {});
Object.keys and for loop
const acc = {}; for (let i = 0, keys = Object.keys(params); i < keys.length; i++) { acc[keys[i]] = params[keys[i]]; }