Benchmark: Some vs. includes ABC

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push(Math.floor(Math.random() * 1000));
  withoutZero.push(Math.floor(Math.random() * 1000) + 1)
}

Tests:

Array.some
var tempResult = !!Math.round(Math.random()) ? hasZero.map(a => a).some(v => v === 0) : withoutZero.some(v => v === 0);
Array.includes
var tempResult = !!Math.round(Math.random()) ? hasZero.map(a => a).includes(0) : withoutZero.includes(0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.some
Array.includes

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the provided JSON benchmark data.

**Benchmark Definition**

The benchmark defines two test cases: `Array.some` and `Array.includes`. Both tests aim to measure the performance of JavaScript arrays with and without using the `===` operator (for exact equality) and/or the `includes()` method.

**Script Preparation Code**

The script preparation code generates two arrays, `hasZero` and `withoutZero`, containing 10,000 random integers. The purpose of these arrays is to serve as inputs for the test cases.

**Options Compared**

The benchmark compares three options:

1. **Using `===` operator**: This approach uses the exact equality operator (`===`) to check if an element exists in the array.
2. **Using `includes()` method**: This approach uses the built-in `includes()` method to check if an element exists in the array.
3. **Using `some()` method without `===`**: This approach uses the `some()` method to iterate through the array and returns a boolean value indicating whether at least one element meets the condition (in this case, being equal to 0).

**Pros and Cons**

Here are some pros and cons of each approach:

* **Using `===` operator**:
	+ Pros: exact equality, no potential performance impact due to loose equality checks.
	+ Cons: can be slower than other approaches due to the explicit comparison.
* **Using `includes()` method**:
	+ Pros: concise and readable, built-in method with good performance.
	+ Cons: may use a different internal implementation for optimization, which could affect performance in certain cases.
* **Using `some()` method without `===`**:
	+ Pros: can be faster than the other approaches due to early termination.
	+ Cons: requires manual iteration and comparison, which can lead to more complex code.

**Library Used**

In this benchmark, no libraries are explicitly mentioned. However, it's worth noting that some JavaScript engines may use internal optimizations or caching mechanisms that could affect the performance of these methods.

**Special JS Feature/Syntax**

There is no mention of special JavaScript features or syntax in the provided benchmark definition. The code uses standard JavaScript constructs and does not rely on any experimental or deprecated features.

**Other Alternatives**

If you were to create a similar benchmark, you might also consider testing other array methods, such as:

* `forEach()`
* `every()`
* `findIndex()`
* `filter()`

You could also experiment with different input sizes and shapes (e.g., arrays of objects, arrays with nested structures) to see how the performance characteristics change.

Related benchmarks:

Some vs. includes ABC (version: 0)

Comparing performance of: Array.some vs Array.includes

Created: 3 years ago by: Guest

Jump to the latest result

Array.some

Array.includes

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):