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Run results for:
Compare the new ES6 spread operator with Ramda assoc (10000000 keys)
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=580904" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
spread operator
64.3M/s
Ramda assoc
21.5M/s
Object.assign
19.9M/s
View exact numbers
Test name
Executions per second
✓
spread operator
64,261,044 Ops/sec
Ramda assoc
21,495,346 Ops/sec
Object.assign
19,850,704 Ops/sec
HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.js"></script>
Script Preparation code:
var params = { "a": 1, "b": 2 }; for(var i = 0; i<10000000; i++); params['x'+i] = i
Tests:
spread operator
var result = { ...params, "c": 3 };
Ramda assoc
var result = R.assoc("c", 3, params);
Object.assign
var result = Object.assign({}, params, {c:3});