Benchmark: lodash to array vs Object to array trial

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

function getRandomInt(max) {
  return Math.floor(Math.random() * Math.floor(max));
}

var obj = {};
for(var i = 0; i < 100000; i++){
  obj[i] = i;
}

Tests:

_. toArray
_.toArray(obj);
object
Object.keys(obj).map(key => ({ key, value: obj[key] }));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_. toArray
object

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 break down the provided benchmark and explain what's being tested, compared, and their pros and cons.

**Benchmark Overview**

The provided benchmark measures the performance of two approaches to convert an object to an array:

1. Using Lodash (`_.toArray(obj)`)
2. Manually iterating over the object using `Object.keys()` and `map()`

**Lodash Approach (`_.toArray(obj)`)**

* Purpose: The Lodash library provides a convenient method to convert an object to an array, which can be useful in various scenarios.
* Library: Lodash is a popular JavaScript utility library that provides a wide range of functional programming helpers.

In the benchmark, `_.toArray(obj)` is called with a sample object containing 100,000 key-value pairs. The benchmark measures how fast this method executes compared to the manual approach.

**Manual Approach (Object.keys() and map())**

* Purpose: This approach manually iterates over the object's keys using `Object.keys()` and then maps each key to an object with the same key and value as in the original object.
* Pros:
	+ Does not require any external libraries, making it more lightweight.
	+ Can be easily understood by developers familiar with JavaScript basics.
* Cons:
	+ May be slower due to the manual iteration and function call overhead.

**Comparison**

The benchmark compares the performance of these two approaches. The results show that `_.toArray(obj)` is significantly faster than the manual approach, indicating that using a dedicated library can lead to better performance in certain scenarios.

**Other Considerations**

* **Scalability**: As the object size increases, the manual approach may become slower due to increased iteration overhead.
* **Code Readability**: Using a dedicated library like Lodash can improve code readability by providing a concise and expressive way to perform common tasks.
* **Maintenance**: The benchmark results will change over time as browsers and engines evolve. Developers should consider this when choosing an approach.

**Other Alternatives**

If you don't want to use Lodash, you can explore other libraries or approaches that provide similar functionality, such as:

* `Array.from()`: A modern JavaScript method for converting arrays or iterables to arrays.
* `for...of` loop: A more concise way to iterate over objects using a `for...of` loop.

Keep in mind that these alternatives might have different performance characteristics and may not offer the same level of expressiveness as Lodash.

Related benchmarks:

lodash to array vs Object to array trial (version: 0)

Comparing performance of: _. toArray vs object

Created: 3 years ago by: Guest

Jump to the latest result

_. toArray

object

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):