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) => value[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:

No previous 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 definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark compares two approaches: using Lodash's `map` function versus using native JavaScript methods (`Object.keys` and `map`) on an object.

**Options Compared**

1. **Lodash's `map`**: This function applies a provided callback function to each element of the array (in this case, an object's values) and returns a new array.
2. **Native JavaScript `map`**: This method is used to create a new array by applying a provided callback function to each element of an existing array (or in this case, an object).

**Pros and Cons**

1. **Lodash's `map`**
	* Pros:
		+ Provides more concise and readable code
		+ Handles edge cases such as null or undefined values
	* Cons:
		+ Includes Lodash library, which may add overhead
		+ May have slower performance compared to native methods (although this can vary depending on the implementation)
2. **Native JavaScript `map`**
	* Pros:
		+ No additional libraries or dependencies needed
		+ Typically faster performance since it's implemented in native code
	* Cons:
		+ Requires more verbose code, which may be less readable
		+ Does not handle edge cases as well as Lodash's implementation

**Library: Lodash**

Lodash is a popular JavaScript library that provides a collection of reusable functions for common tasks. In this benchmark, the `map` function from Lodash is used to transform an object's values.

**Special JS Feature or Syntax**

There are no special features or syntaxes being tested in this benchmark. The focus is on comparing two implementation approaches: using a library (`Lodash`) versus native JavaScript methods.

**Benchmark Preparation Code and Html Preparation Code**

The preparation code sets up the `value` variable, which is an object with three properties (a, b, c) containing numeric values. The HTML preparation code includes a script tag that loads the Lodash library from a CDN.

**Other Alternatives**

Alternatives to Lodash's `map` function include using other JavaScript libraries or frameworks that provide similar functionality, such as Underscore.js or Ramda. Native JavaScript methods like `Array.prototype.map()` can also be used, although they may not provide the same level of convenience and readability as a library.

It's worth noting that there are other approaches to benchmarking JavaScript performance, such as using frameworks like Benchmark.js or comparing implementation-specific optimizations in web browsers. However, MeasureThat.net provides a straightforward and easy-to-use platform for comparing different implementation approaches.

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):