Run results for: Lodash vs native, reduce vs zipObject

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

es6 reduce

1.1M/s

lodash zipObject

973K/s

lodash reduce

959K/s

View exact numbers

Test name	Executions per second
✓ es6 reduce	1,066,618 Ops/sec
lodash zipObject	973,205 Ops/sec
lodash reduce	959,432 Ops/sec

HTML Preparation code:

function double(item, n) {  
	return n*2;
}
var data = [...Array(20)].map((v, idx) => idx);
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

function double(item, n) {  
	return n*2;
}
var data = [...Array(20)].map((v, idx) => idx);

Tests:

lodash zipObject
_.zipObject(data, _.map(double, data))
lodash reduce
_.reduce(data, (acc, cur) => { acc[cur] = double(cur); return acc; }, {});
es6 reduce
data.reduce((acc, cur) => { acc[cur] = double(cur); return acc; }, {});