Benchmark: Lodash reduce vs transform vs Native reduce on object

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Script Preparation code:

window.obj = {};

for (var i = 0, len = 10; i < len; i++) {
  var arr = []
  obj['key' + i] = arr
  for (var n = 0, len = 10; n < len; n++) {
    arr.push({ ['key' + n]: n });
  }
}

Tests:

Lodash reduce
_.reduce(obj, (acc, val, key) => { acc[key] = val.map(d => ({ label: key, value: val })); return acc; }, {})
Native
Object.entries(obj).reduce((acc, [key, val]) => { acc[key] = val.map(d => ({ label: key, value: val })); return acc; }, {})
Lodash transform
_.transform(obj, (acc, val, key) => { acc[key] = val.map(d => ({ label: key, value: val })); }, {})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash reduce
Native
Lodash transform

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 12 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser/OS: Chrome 124 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash reduce	1913462.0 Ops/sec
Native	1780345.0 Ops/sec
Lodash transform	1904973.0 Ops/sec

Lodash reduce vs transform vs Native reduce on object (version: 0)

Comparing performance of: Lodash reduce vs Native vs Lodash transform

Created: one year ago by: Registered User

Jump to the latest result

Lodash reduce

Native

Lodash transform

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A