Benchmark: lodash.zipObject vs native reduce (fixed)

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var values = [30310, 100303, 3040494];
var keys = ['a', 'b', 'c'];

Tests:

lodash.values
_.zipObject(values, keys)
native
values.reduce((acc, entry, idx) => { acc[keys[idx]] = entry; return acc; }, {});

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.values
native

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
lodash.values	1300084.5 Ops/sec
native	3477484.2 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested.

**What is being tested?**

The provided JSON represents two microbenchmarks:

1. `_.zipObject(values, keys)`: This tests the performance of Lodash's `zipObject` function, which creates a new object from two arrays.
2. `values.reduce((acc, entry, idx) => { acc[keys[idx]] = entry; return acc; }, {})`: This tests the performance of a native JavaScript implementation using the `reduce` method to achieve the same result as Lodash's `zipObject`.

**Options compared**

The two approaches are:

1. **Lodash's `zipObject` function**: This is a popular utility function provided by the Lodash library, which helps simplify tasks like creating objects from arrays.
2. **Native JavaScript implementation using `reduce`**: This approach uses the built-in `reduce` method to create an object from two arrays.

**Pros and Cons of each approach**

**Lodash's `zipObject` function:**

Pros:

* Simplifies code and makes it more readable
* Provides a reusable utility function that can be used in other parts of the codebase

Cons:

* Introduces additional overhead due to the need to load the Lodash library
* May not be as performant as native implementations, especially for large datasets

**Native JavaScript implementation using `reduce`:**

Pros:

* No additional overhead due to loading a library
* Can potentially be more efficient and scalable for large datasets

Cons:

* Requires more code and may make it less readable
* Can be error-prone if not implemented correctly

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like array manipulation, object creation, and more. The `zipObject` function is one of its most useful utilities.

**Special JS feature/syntax: None mentioned in this benchmark**

If you're interested in exploring other microbenchmarks on MeasureThat.net, I'd be happy to help!

As for alternatives, there are a few options:

* **ES6 object creation methods**: Instead of using Lodash's `zipObject`, you could use the newer ES6 object creation methods like `{ [keys[idx]]: entry }`.
* **Other library alternatives**: There are other JavaScript utility libraries that provide similar functionality to Lodash, such as Underscore.js or Ramda.
* **Native implementation variations**: Depending on the specific requirements and constraints of your project, you might consider using a different native implementation approach, such as using `Array.prototype.reduce()` with a custom callback function.

Let me know if you have any further questions!

Related benchmarks:

lodash.zipObject vs native reduce (fixed) (version: 0)

Comparing performance of: lodash.values vs native

Created: 7 years ago by: Guest

Jump to the latest result

lodash.values

native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):