Benchmark: Some vs. Filter vs. indexOf vs. includesasd

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 2; 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.some(v => v === 0) : withoutZero.some(v => v === 0);
Array.filter
var tempResult = !!Math.round(Math.random()) ? hasZero.filter(v => v === 0) : withoutZero.filter(v => v === 0);
Array.indexOf
var tempResult = !!Math.round(Math.random()) ? hasZero.indexOf(0) > -1 : withoutZero.indexOf(0) > -1;
Array.includes
var tempResult = !!Math.round(Math.random()) ? hasZero.includes(0) : withoutZero.includes(0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.some
Array.filter
Array.indexOf
Array.includes

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark.

The benchmark is comparing four different approaches to check if an array contains a specific value (in this case, 0):

1. `Array.some()`: This method returns `true` as soon as it finds at least one element in the array that satisfies the provided callback function.
2. `Array.filter()`: This method creates a new array with all elements that satisfy the provided callback function.
3. `Array.indexOf()`: This method returns the index of the first element in the array that matches the specified value, or -1 if no such element is found.
4. `Array.includes()`: This method returns `true` as soon as it finds an element in the array that matches the specified value.

The pros and cons of each approach are:

* `Array.some()`:
	+ Pros: fast, lightweight, easy to use.
	+ Cons: can be less efficient than other methods if used with large arrays or complex callback functions.
* `Array.filter()`:
	+ Pros: creates a new array with filtered elements, easy to use.
	+ Cons: can be slower and more memory-intensive than some(), especially for large arrays.
* `Array.indexOf()`:
	+ Pros: returns the exact index of the found element, useful in certain scenarios.
	+ Cons: can be slower than other methods, as it requires searching through the entire array.
* `Array.includes()`:
	+ Pros: fast, easy to use, and provides a simple boolean result.
	+ Cons: not as flexible as some() or filter(), as it only checks for exact matches.

Now, let's look at some libraries being used in this benchmark. There is none explicitly mentioned, but I assume the standard JavaScript arrays (Array.prototype) are being tested.

Regarding special JavaScript features or syntax:

* The `!!` operator is used to convert a value to a boolean. This is done to ensure that the callback function returns a boolean result.
* The `Math.round()` and `Math.random()` functions are used to generate random numbers.

Now, about alternatives:

Other approaches that could be tested in this benchmark include:

* Using `Array.prototype.every()` or `Array.prototype.reduce()` instead of some() or filter().
* Using native methods like `Uint8Array` or `Int32Array` for numeric checks.
* Using regex patterns to match the specified value.

Keep in mind that these alternatives might not be as straightforward to implement and might require additional setup.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36

Browser/OS: Chrome 85 on Mac OS X 10.15.6

View result in a separate tab

Test name	Executions per second
Array.some	2146205.0 Ops/sec
Array.filter	2114182.5 Ops/sec
Array.indexOf	2133872.8 Ops/sec
Array.includes	2194474.5 Ops/sec

Related benchmarks:

Some vs. Filter vs. indexOf vs. includesasd (version: 0)

Comparing performance of: Array.some vs Array.filter vs Array.indexOf vs Array.includes

Created: 4 years ago by: Guest

Jump to the latest result

Array.some

Array.filter

Array.indexOf

Array.includes

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):