Benchmark: Set vs Array cuttle

HTML Preparation code:

<div id='1'></div>

Script Preparation code:

var move = 'pass';

var moveSlugs = [
    'draw',
    'points',
    'faceCard',
    'scuttle',
    'untargetedOneOff',
    'targetedOneOff',
    'jack',
    'counter',
    'resolve',
    'resolveThree',
    'resolveFour',
    'resolveFive',
    'seven/points',
    'seven/scuttle',
    'seven/faceCard',
    'seven/jack',
    'seven/untargetedOneOff',
    'seven/targetedOneOff',
    'pass',
];

var moveSlugSet = new Set(moveSlugs);

Tests:

Set
moveSlugSet.has(move);
array
moveSlugs.includes(move);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Set
array

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser/OS: Firefox 129 on Ubuntu

View result in a separate tab

Test name	Executions per second
Set	723770944.0 Ops/sec
array	20758892.0 Ops/sec

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 Context**

The benchmark is designed to compare two approaches for checking if a variable `move` exists in an array or a Set data structure. The goal is to determine which approach is faster and more efficient.

**Script Preparation Code**

The script prepares two variables:

1. `moveSlugs`: an array of strings containing various values.
2. `moveSlugSet`: a Set created from the `moveSlugs` array using the `Set()` constructor.

**Html Preparation Code**

The HTML code simply creates a `<div>` element with an ID of "1".

**Benchmark Test Cases**

There are two test cases:

1. **"Set"`: The benchmark calls the `has()` method on the `moveSlugSet` Set instance, passing the `move` variable as an argument.
2. **"array"`: The benchmark calls the `includes()` method on the `moveSlugs` array, passing the `move` variable as an argument.

**Comparison**

The two approaches are compared in terms of their execution time and performance.

**Pros and Cons of each approach:**

1. **Set (`has()` method)**:
	* Pros:
		+ Faster lookup times (O(1) average case).
		+ More memory-efficient for large datasets.
	* Cons:
		+ Less flexible than array-based approaches, as it only supports exact value matches.
2. **Array (`includes()` method)**:
	* Pros:
		+ More flexible and forgiving than Set-based approaches, as it allows for partial value matches and case-insensitive matching.
	* Cons:
		+ Slower lookup times (O(n) average case), especially for large datasets.

**Special JS Features/Syntax**

The benchmark uses the following JavaScript features:

1. **Sets**: Introduced in ECMAScript 2015, Sets are a data structure that allows for efficient membership testing and fast lookups.
2. **Array methods**: The `includes()` method is a modern array method introduced in ECMAScript 2019.

**Other Considerations**

When choosing between these approaches, consider the following factors:

1. **Data size and complexity**: For large datasets or complex data structures, Set-based approaches might be more suitable.
2. **Performance requirements**: If speed is critical, the Set-based approach (`has()` method) might be a better choice.
3. **Flexibility and forgiveness**: If you need to match values with slight variations or allow for partial matches, the array-based approach (`includes()` method) might be more suitable.

**Alternative Approaches**

If neither of these approaches meets your requirements, consider the following alternatives:

1. **Using a Map data structure**: Maps can provide fast lookups and flexibility similar to Sets.
2. **Implementing a custom lookup function**: You could write a custom function to perform the lookup, allowing you to optimize it for specific use cases.

Keep in mind that these alternative approaches may have different trade-offs in terms of performance, memory usage, and code complexity.

Related benchmarks:

Set vs Array cuttle (version: 0)

Checking to see if a variable is included

Comparing performance of: Set vs array

Created: one year ago by: Guest

Jump to the latest result

Set

array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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