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Run results for:
Object.assign vs mutation assign
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Mutation
111781144.0 Ops/sec
Object.assign
5226937.0 Ops/sec
Tests:
Mutation
let ob = {a:1, b:2}; ob.c = 3;
Object.assign
let ob = {a:1, b:2}; ob = Object.assign(ob, {c:3})