Benchmark: lodash map vs Object.keys map

HTML Preparation code:

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

Script Preparation code:

var value = {a: 30310, b: 100303, c: 3040494};

Tests:

lodash.map
_.map(value, (v) => v)
native
Object.keys(value).map((v) => v)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.map
native

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

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

**Benchmark Overview**

The test compares the performance of two approaches to iterate over an object: using Lodash's `map` function versus native JavaScript's `Object.keys` method.

**Options Compared**

* **Lodash's `map` function**: This is a utility function from the Lodash library that applies a given function to each element of an array or object. In this case, it's used to iterate over the object's values.
* **Native JavaScript's `Object.keys` method**: This method returns an array of strings representing the enumerable property names of an object.

**Pros and Cons**

* Lodash's `map` function:
	+ Pros: More concise and readable code. It abstracts away the iteration logic, making it easier to write.
	+ Cons: Requires including an additional library (Lodash) in your project, which may add extra dependencies.
* Native JavaScript's `Object.keys` method:
	+ Pros: No additional libraries required, as it's a built-in method.
	+ Cons: More verbose code, requiring explicit iteration logic.

**Library Used**

The Lodash library is used for the `map` function. Lodash provides a set of utility functions that can simplify common tasks in JavaScript development.

**Special JS Feature/Syntax**

None are mentioned in this benchmark.

**Other Considerations**

When choosing between using Lodash's `map` function and native JavaScript's `Object.keys` method, consider the following:

* If you need to iterate over an object's properties frequently, using a library like Lodash might be beneficial due to its concise code and ease of use.
* However, if you're working with objects in a specific context (e.g., web development) and don't want to include extra libraries, native JavaScript's `Object.keys` method is a viable alternative.

**Alternatives**

Other alternatives for iterating over an object's properties in JavaScript include:

* Using `for...in` or `for...of` loops
* Utilizing the `forEach` method on arrays or objects (although this won't work directly with all types of iterable objects)
* Implementing a custom iteration function using recursion or iteration

Keep in mind that each approach has its trade-offs, and the choice ultimately depends on your specific use case and personal preference.

Related benchmarks:

lodash map vs Object.keys map (version: 0)

lodash map vs Object.keys map

Comparing performance of: lodash.map vs native

Created: 8 years ago by: Guest

Jump to the latest result

lodash.map

native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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