Run results for: Set (Lodash vs Lodash/fp vs Immutable) comp. test

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 Edg/134.0.0.0

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

native (mutations)

6.6M/s

lodash (mutations)

2.2M/s

immutable

551K/s

lodash/fp

295K/s

View exact numbers

Test name	Executions per second
✓ native (mutations)	6,620,969 Ops/sec
lodash (mutations)	2,246,521 Ops/sec
immutable	550,770 Ops/sec
lodash/fp	294,842 Ops/sec

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)'></script>
<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/immutable/5.0.0-beta.4/immutable.min.js'></script>

Script Preparation code:

var fp = _.noConflict();
var im = Immutable;

var original = { x: { y: { z: 123 }}};

function pureJs(obj, path, value) {
    const keys = Object.keys(path);
    let current = obj;

    for (let i = 0; i < keys.length - 1; i++) {
        const key = keys[i];
        if (!current[key]) {
            current[key] = {};
        }
        current = current[key];
    }

    current[keys[keys.length - 1]] = value;
}

Tests:

native (mutations)
pureJs(original, ['x', 'y', 'z'], 456)
lodash (mutations)
_.set(original, ['x', 'y', 'z'], 456)
lodash/fp
fp.set(original, ['x', 'y', 'z'], 456)
immutable
im.setIn(original, ['x', 'y', 'z'], 456)