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Run results for:
JS Object assign vs object new property 2
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Object assign
15563778.0 Ops/sec
Object new property
112300512.0 Ops/sec
Tests:
Object assign
const firstObject = { sampleData: 'Hello world' } Object.assign(firstObject, { moreData: 'foo bar' })
Object new property
const firstObject = { sampleData: 'Hello world' } firstObject.moreData = 'foo bar';