Benchmark: difference vs native

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var tables = [
  "1",
  "2",
  "3",
  "4",
  "5",
  "6",
  "7",
  "8",
  "9",
  "10",
];

var hidden = [
  "2",
  "4",
];

Tests:

lodash
_.difference(tables, hidden);
native
tables.filter(function(id) { return !hidden.includes(id)})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
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):

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Let's dive into the world of JavaScript microbenchmarks!

**Benchmark Definition**

The provided JSON represents a benchmark definition, which outlines the test scenario and setup for measuring the performance difference between using a library (Lodash) versus native code to achieve a specific task. The benchmark is designed to compare the execution speed of two approaches:

1. Using Lodash's `difference` function.
2. Implementing the same logic manually without relying on any external libraries.

**Script Preparation Code**

The script preparation code sets up an array of numbers (`tables`) and another array containing some elements from `tables` (`hidden`). This setup is used to create a test case where we need to find the difference between these two arrays. The manual implementation of this logic will be compared with Lodash's pre-built function.

**Html Preparation Code**

The HTML preparation code includes a reference to the Lodash library, which is an external dependency for the benchmark. This library provides utility functions that can speed up certain tasks.

**Individual Test Cases**

There are two test cases:

1. **Lodash**: The benchmark definition uses Lodash's `difference` function to find the elements in `tables` that are not present in `hidden`.
2. **Native**: The second test case manually implements the same logic without using any external libraries. This approach forces us to write our own code for finding the difference between two arrays.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Lodash (difference function)**:
	+ Pros: Fast execution speed, as it's a pre-built function optimized for performance.
	+ Cons: Requires an external library dependency, which may impact loading times or introduce additional latency.
* **Native**:
	+ Pros: No external dependencies, which might improve load times and reduce latency.
	+ Cons: Slower execution speed due to the manual implementation of the logic.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides an extensive collection of functional programming helpers. In this benchmark, it's used for its `difference` function, which takes two arrays as input and returns an array containing only the elements present in the first array but not in the second.

**Special JS Feature/Syntax: None**

There are no special JavaScript features or syntaxes being tested or employed in this benchmark. The focus is on comparing the performance of two different approaches to achieving a specific task.

**Other Alternatives**

If you're interested in exploring alternative libraries or approaches, here are some options:

1. **Other array difference functions**: Other popular library functions like `Array.prototype.filter()` or `Set` operations could be used instead of Lodash's `difference`.
2. **Alternative implementation**: If you want to try a different native implementation, you could use `slice()`, `concat()`, and `includes()` methods or other approaches to find the difference between two arrays.
3. **Benchmarking frameworks**: Tools like Benchmark.js or micro-benchmark can help simplify the benchmarking process by providing a more structured approach.

In summary, this benchmark provides a controlled comparison of performance between using an external library (Lodash) versus implementing the same logic manually without relying on any libraries.

Related benchmarks:

difference vs native (version: 0)

Comparing performance of: lodash vs native

Created: 5 years ago by: Guest

Jump to the latest result

lodash

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):