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Object.assign vs Lodash.assign (4.17.21)
(version: 0)
Measuring performance between native assign and lodash assign
Comparing performance of:
lodash.assign vs native assign
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.js"></script>
Script Preparation code:
var person = {name: 'Foo', lastName: 'Bar'};
Tests:
lodash.assign
_.assign({}, person, {age: 15});
native assign
Object.assign({}, person, {age: 15});
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lodash.assign
native assign
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down what's being tested in this benchmark. **What is being tested?** The benchmark compares the performance of two approaches: `Object.assign()` (the native JavaScript method) and `_.assign()` from the Lodash library. **Options compared** Two options are being compared: 1. **Native `Object.assign()`:** This is a built-in JavaScript function that assigns properties from an object to another object. 2. **Lodash's `_.assign()`:** This is a utility function from the Lodash library that performs a shallow merge of two objects. **Pros and Cons** * **Native `Object.assign()`:** + Pros: - Fast execution (usually very close to native code) - No dependencies on external libraries + Cons: - Can be slower than optimized implementations in certain scenarios - May not support all types of objects (e.g., arrays, sets) * **Lodash's `_.assign()`:** + Pros: - Provides additional features like null and undefined handling, array merging, and more - Often faster than native `Object.assign()` due to optimized implementations + Cons: - Requires the Lodash library to be included, which may add overhead for some use cases - May not support all types of objects **Library: Lodash** Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like array manipulation, object merging, and more. `_.assign()` is one of the many utility functions provided by Lodash. **Special JS feature or syntax: None mentioned** There's no special JavaScript feature or syntax being tested in this benchmark. **Other alternatives** If you're interested in using native `Object.assign()`, you can also consider other methods like: * `Object.create()` and then assigning properties to the created object * Using a loop to assign properties to an object However, these approaches are generally slower than optimized implementations of `Object.assign()`. Keep in mind that Lodash's `_.assign()` is often the recommended way to perform shallow merges in JavaScript due to its flexibility and performance.
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