Benchmark: _.isEqual vs dequal vs JSON.stringify

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);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Level 1 isEqual
Level 1 dequal
Level 1 stringify
Level 2 isEqual
Level 2 dequal
Level 2 stringify
Level 3 isEqual
Level 3 dequal
Level 3 stringify

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Windows

View result in a separate tab

Test name	Executions per second
Level 1 isEqual	844671.8 Ops/sec
Level 1 dequal	1679776.0 Ops/sec
Level 1 stringify	736308.0 Ops/sec
Level 2 isEqual	529293.4 Ops/sec
Level 2 dequal	1276288.0 Ops/sec
Level 2 stringify	709486.6 Ops/sec
Level 3 isEqual	394381.7 Ops/sec
Level 3 dequal	1122908.0 Ops/sec
Level 3 stringify	743706.5 Ops/sec

_.isEqual vs dequal vs JSON.stringify (version: 1)

Test on _.isEqual vs dequal vs JSON.stringify performance

Comparing performance of: Level 1 isEqual vs Level 1 dequal vs Level 1 stringify vs Level 2 isEqual vs Level 2 dequal vs Level 2 stringify vs Level 3 isEqual vs Level 3 dequal vs Level 3 stringify

Created: 2 years ago by: Registered User

Jump to the latest result

Level 1 isEqual

Level 1 dequal

Level 1 stringify

Level 2 isEqual

Level 2 dequal

Level 2 stringify

Level 3 isEqual

Level 3 dequal

Level 3 stringify

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A