Run results for: _.isEqual vs dequal vs JSON.stringify

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Level 1 dequal

13.2M/s

Level 2 dequal

7.2M/s

Level 3 dequal

4.8M/s

Level 3 stringify

2.2M/s

Level 2 stringify

2.2M/s

Level 1 stringify

2.1M/s

Level 1 isEqual

2.1M/s

Level 2 isEqual

1.0M/s

Level 3 isEqual

709K/s

View exact numbers

Test name	Executions per second
✓ Level 1 dequal	13,164,335 Ops/sec
Level 2 dequal	7,200,458 Ops/sec
Level 3 dequal	4,838,422 Ops/sec
Level 3 stringify	2,203,046 Ops/sec
Level 2 stringify	2,170,641 Ops/sec
Level 1 stringify	2,144,370 Ops/sec
Level 1 isEqual	2,065,662 Ops/sec
Level 2 isEqual	1,020,827 Ops/sec
Level 3 isEqual	709,449 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dequal@2.0.2/dist/index.min.js"></script>

Script Preparation code:

// 1 level deep
window.foo1 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar1 = { a: 1, b: 3, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };

// 2 levels deep
window.foo2 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar2 = { a: 1, b: 2, c: { a: 1, b: 3, c: { a: 1, b: 2 } } };

// 3 levels deep
window.foo3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 4 } } };

Tests:

Level 1 isEqual
_.isEqual(window.foo1, window.bar1)
Level 1 dequal
dequal.dequal(window.foo1, window.bar1)
Level 1 stringify
JSON.stringify(window.foo1) === JSON.stringify(window.bar1);
Level 2 isEqual
_.isEqual(window.foo2, window.bar2)
Level 2 dequal
dequal.dequal(window.foo2, window.bar2)
Level 2 stringify
JSON.stringify(window.foo2) === JSON.stringify(window.bar2);
Level 3 isEqual
_.isEqual(window.foo3, window.bar3)
Level 3 dequal
dequal.dequal(window.foo3, window.bar3)
Level 3 stringify
JSON.stringify(window.foo3) === JSON.stringify(window.bar3);