Benchmark: comparison - MeasureThat.net

Script Preparation code:

const a = ['abc', false, 0, 1, 2, 3];

Tests:

a
const a = ['abc', false, 0, 1, 2, 3]; a.filter(c => c)
b
const a = ['abc', false, 0, 1, 2, 3]; a.filter(c => c !== false)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
a
b

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 benchmarking process and explain what's being tested.

**Benchmark Definition**

The provided JSON defines two benchmark tests:

1. `const a = ['abc', false, 0, 1, 2, 3];`
2. `a.filter(c => c !== false)`

These tests measure the performance of JavaScript's array filtering method.

**Options compared**

In this case, there are only two options being compared: using `filter()` with a predicate function (`c => c`) and using `filter()` without any predicate function (`c !== false`).

**Pros and Cons**

* **Using `filter()` with a predicate function (`c => c`)**:
	+ Pros:
		- More flexible, as the predicate function can be used to filter based on arbitrary conditions.
		- Can be more efficient if the filtering condition is complex or depends on multiple variables.
	+ Cons:
		- May introduce additional overhead due to the complexity of the predicate function.
		- Requires explicit error handling for edge cases (e.g., `undefined` values).
* **Using `filter()` without any predicate function (`c !== false`)**:
	+ Pros:
		- Simpler and more concise code.
		- Less potential for errors, as the filtering condition is fixed and well-defined.
	+ Cons:
		- Less flexible, as it only filters out `false` values.
		- May not be suitable for all use cases where different filtering conditions are required.

**Library usage**

There are no libraries mentioned in the provided benchmark definition. However, if you're using a library like Lodash, which provides an `filter()` function, understanding its purpose and usage is essential. In this case, Lodash's `filter()` would work similarly to JavaScript's built-in `filter()`, but with additional features and optimizations.

**Special JS feature or syntax**

There are no special JS features or syntax mentioned in the provided benchmark definition. The code only uses standard JavaScript syntax and does not include any experimental features like async/await, ES6 classes, or destructuring.

**Other alternatives**

If you're interested in exploring alternative approaches to array filtering, consider:

* Using `map()` and then applying a conditional statement to filter out unwanted elements.
* Utilizing third-party libraries like Lodash (as mentioned earlier) for more advanced filtering capabilities.
* Implementing custom filtering logic using techniques like bit manipulation or bitwise operators.

Keep in mind that each alternative approach has its own pros and cons, which may affect the performance and maintainability of your code.

Related benchmarks:

comparison (version: 0)

Comparing performance of: a vs b

Created: 3 years ago by: Guest

Jump to the latest result

a

b

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):