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Lodash merge vs deepmerge lksafkmasldsa
(version: 0)
Benchmark.js
Comparing performance of:
lodash merge vs deepmerge
Created:
2 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script> <script src='https://unpkg.com/deepmerge@3.2.0/dist/umd.js'></script>
Tests:
lodash merge
var a = { a: 'oh', b: 'my', c: { a: 'a', b: { c: 'c' } } }; var b = { c: { b: { d: 'a' }, c: { d: 'd' } } }; var c = _.merge({}, a, b);
deepmerge
var a = { a: 'oh', b: 'my', c: { a: 'a', b: { c: 'c' } } }; var b = { c: { b: { d: 'a' }, c: { d: 'd' } } }; var c = deepmerge({}, a, b);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lodash merge
deepmerge
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Whale/3.20.182.14 Safari/537.36
Browser/OS:
Chrome 112 on Mac OS X 10.15.7
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=507539" width="100%" height="500px"></iframe>
deepmerge
2.5M/s
lodash merge
434K/s
View exact numbers
Test name
Executions per second
✓
deepmerge
2,545,720 Ops/sec
lodash merge
434,274 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what is being tested, compared, and their pros and cons. **What is being tested?** The benchmark compares the performance of two JavaScript libraries: Lodash (`_.merge`) and DeepMerge (`deepmerge`). Both libraries are used to merge two objects together. **Options compared:** 1. **Lodash (`_.merge`)**: * Pros: + Widely used and well-established library. + Simple and easy to use. * Cons: + May have a slower performance due to its complexity. 2. **DeepMerge (`deepmerge`)**: * Pros: + Optimized for deep object merging, which can be beneficial in certain scenarios. + May have better performance than Lodash. * Cons: + Less widely used and less established than Lodash. **Other considerations:** 1. **Library usage**: Both libraries use different approaches to merge objects. Lodash uses a recursive approach, while DeepMerge uses a iterative approach. This difference in approach can affect the performance and complexity of the merged object. 2. **Performance**: The benchmark measures the execution speed of both libraries for large object merges. The results will show which library performs better. **Library explanations:** 1. **Lodash (`_.merge`)**: * Lodash is a popular JavaScript utility library developed by Isaac Zeldman in 2010. * Its primary purpose is to provide functional programming helpers and utility functions for tasks like array manipulation, object merging, and more. 2. **DeepMerge (`deepmerge`)**: * DeepMerge is a lightweight JavaScript library specifically designed for deep object merging. * It provides an efficient and optimized way to merge objects, especially useful when dealing with nested structures. **Special JS feature or syntax:** None mentioned in the benchmark definition. **Alternatives:** 1. **Object.assign()**: A built-in JavaScript method used for shallow object assignment. 2. **Recursive functions**: Other libraries or custom implementations that use recursive approaches for merging objects. 3. **Other deep merging libraries**: Such as merge-deep, jsondiffpatch, and more. Keep in mind that the benchmark's results may vary depending on specific use cases and requirements.
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