Benchmark: Lodash filter length vs sumby

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.2/lodash.min.js"></script>

Script Preparation code:

window.array = [1, 4, 3, 4, 2, 2, 1, 5, 3, 5, 1, 4, 3, 4, 2, 2, 1, 5, 3, 5, 1, 4, 3, 4, 2, 2, 1, 5, 3, 5, 1, 4, 3, 4, 2, 2, 1, 5, 3, 5, 1, 4, 3, 4, 2, 2, 1, 5, 3, 5];

Tests:

Filter length
const x = _.filter(window.array, i => i === 3).length; return x;
Sum
const x = _.sumBy(window.array, i => i === 3 ? 1 : 0); return x;
Manual
let x = 0; for (let i = 0; i < window.array.length; i = i + 1) { if (window.array[i] === 3) { x = x + 1; } } return x;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Filter length
Sum
Manual

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0

Browser/OS: Firefox 78 on Windows

View result in a separate tab

Test name	Executions per second
Filter length	1306135.0 Ops/sec
Sum	2000718.0 Ops/sec
Manual	49539.4 Ops/sec

Lodash filter length vs sumby (version: 0)

Comparing performance of: Filter length vs Sum vs Manual

Created: 7 years ago by: Guest

Jump to the latest result

Filter length

Sum

Manual

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A