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/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

es6 reduce

4.6M/s

lodash reduce

4.5M/s

lodash zipObject

1.2M/s

View exact numbers

Test name	Executions per second
✓ es6 reduce	4,612,514 Ops/sec
lodash reduce	4,451,388 Ops/sec
lodash zipObject	1,234,777 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; }, {});