Benchmark: lodash.keys vs Object.keys

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.keys
_.keys(value)
native
Object.keys(value)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.keys
native

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks!

The provided JSON represents a benchmark test case on MeasureThat.net, where users can compare the performance of two approaches: using the `_.keys` function from Lodash (a popular utility library) and using the built-in `Object.keys()` method in JavaScript.

**What's being tested?**

The test compares the execution speed of these two functions:

1. `_._keys(value)` - This is a call to the `keys()` method on an object, which returns an array of the object's own enumerable property names.
2. `Object.keys(value)` - This is a call to the built-in `Object.keys()` method on the same object, which also returns an array of the object's own enumerable property names.

**Options compared**

The test compares two options:

1. **Lodash's `_keys` function**: A custom implementation of key extraction from objects, likely optimized for performance.
2. **Native JavaScript's `Object.keys()` method**: The built-in method to extract keys from an object in modern JavaScript.

**Pros and Cons of each approach:**

**Lodash's `_keys` function:**

Pros:

* Often implemented as a lightweight, fast, and efficient solution for key extraction.
* May provide additional features or optimizations not available in native JavaScript.

Cons:

* Requires the Lodash library to be included, which may add extra overhead.
* Might require additional setup or configuration.

**Native JavaScript's `Object.keys()` method:**

Pros:

* Built-in, zero-configuration solution that doesn't require an external library.
* Typically optimized for performance by modern JavaScript engines.

Cons:

* May not provide the same level of optimization as a custom implementation like Lodash's `_keys`.
* Can be slower than a well-optimized custom implementation due to its overhead (e.g., function calls, lookups).

**Library:**

The `_.keys()` function is part of the Lodash library, which provides a comprehensive set of utility functions for tasks like array manipulation, object creation, and more.

**Special JavaScript feature or syntax:**

None mentioned in this specific benchmark test case. However, if you'd like to know about other advanced features or syntax in JavaScript, I can provide information on that as well!

**Other alternatives:**

For key extraction from objects, some developers might consider using other approaches, such as:

* Using a library like `lodash` (similar to the `_keys` function) but with different methods (e.g., `_.values()`, `_.entries()`).
* Implementing a custom key extraction function in your own code.
* Utilizing other libraries or modules that provide similar functionality.

However, for most use cases, Lodash's `_.keys()` and native JavaScript's `Object.keys()` are suitable and efficient choices.

Related benchmarks:

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

Comparing performance of: lodash.keys vs native

Created: 8 years ago by: Guest

Jump to the latest result

lodash.keys

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):