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Object.assign vs Lodash.assign (Lodash 4)
(version: 0)
Measuring approaches performance
Comparing performance of:
Lodash Assign vs Native Assign
Created:
6 years ago
by:
Registered User
Jump to the latest result
HTML Preparation code:
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>
Script Preparation code:
var person = {name: 'Frederick', lastName: 'Corcino Alejo'};
Tests:
Lodash Assign
_.assign({}, person, {age: 15, favorite_color: "red"});
Native Assign
Object.assign({}, person, {age: 15, favorite_color: "red"});
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
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested, compared, and their pros/cons. **Benchmark Overview** The benchmark compares the performance of two approaches: `Object.assign` (native JavaScript) and `_.assign` from the Lodash library. **Options Compared** 1. **Native JavaScript (`Object.assign`)**: This is a built-in JavaScript function that creates a new object by copying existing values from an object source. 2. **Lodash Library (`_.assign`)**: A popular utility library that provides a simple way to merge objects. **Pros and Cons of Each Approach** 1. **Native JavaScript (`Object.assign`)**: * Pros: + Built-in function, so no additional dependencies are required. + Often faster since it's implemented in native code. + Can be more efficient for large datasets. * Cons: + May not work as expected with certain data types (e.g., arrays). + Requires manual configuration of options (e.g., deep merge, nullish coalescing). 2. **Lodash Library (`_.assign`)**: * Pros: + Easier to use, especially for complex merges. + Provides more features and flexibility (e.g., merging arrays, objects with nested objects). + Can be more convenient for developers who are not familiar with native JavaScript functions. * Cons: + Requires an additional library dependency. + May be slower since it's a JavaScript function. **Library: Lodash** Lodash is a popular JavaScript utility library that provides a set of helper functions to simplify common programming tasks. The `_.assign` function is one of its most widely used helpers, making it easy to merge objects. **Special JS Feature/Syntax: None mentioned in the provided benchmark definition** However, if we look at other benchmarks on MeasureThat.net, some tests might use special JavaScript features or syntax like async/await, Promises, or modern ECMAScript features (e.g., `const`, `let`). **Other Alternatives** If you're looking for alternatives to Lodash's `_.assign`, you can consider: 1. **Object.assign()**: The native JavaScript function mentioned in the benchmark. 2. **JSON Merge Patch (jmp)**: A lightweight library that provides a simple way to merge JSON objects. 3. **Merge-deep**: A small, fast library for merging complex data structures. Keep in mind that each alternative has its own strengths and weaknesses, so choose the one that best fits your specific use case. I hope this explanation helps you understand what's being tested in the benchmark!
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