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Run results for:
delete vs use spread to omit property
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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/119.0.0.0 Safari/537.36
Browser:
Chrome 119
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
delete
15580771.0 Ops/sec
spread
3877919.5 Ops/sec
set undefined
6024737.0 Ops/sec
Script Preparation code:
var obj = { a:1, b:2, c:3 }
Tests:
delete
delete obj.a
spread
obj = {...obj, a: undefined}
set undefined
obj.a = undefined