Benchmark: JS some vs find 2

Script Preparation code:


var arr = [];

var i = 0;
while(i < 100000) {
    arr.push('dummy' + i);
    i++;
}

arr.concat(['Admin', 'SuperAdmin']);

i = 0;
while(i < 100000) {
    arr.push('more z fds fds fds fds fdsdummy' + i);
    i++;
}

Tests:

Find
arr.find(role => role === 'Admin' || role === 'SuperAdmin');
Some
arr.some(role => role === 'Admin' || role === 'SuperAdmin');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Find
Some

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of the benchmark.

**Benchmark Definition Json**

The provided JSON represents a JavaScript microbenchmark test case. It includes:

* `Script Preparation Code`: This code prepares the test environment by creating an array (`arr`) and populating it with a large number of elements using two different types of loops (while). The arrays are then concatenated with additional strings.
* `Html Preparation Code`: Since this is not provided, we can assume that there's no HTML-related setup for this benchmark.

**Options Compared**

In the test cases, two JavaScript methods are being compared:

1. `find()`
2. `some()`

These two methods are used to iterate over an array and test a condition.

*   **`find()`**: The `find()` method returns the first element in the array that satisfies the provided testing function. If no elements satisfy the testing function, it returns `undefined`.
*   **`some()`**: The `some()` method returns `true` as soon as an element in the array satisfies the provided testing function. If no elements satisfy the testing function, it returns `false`.

**Pros and Cons of Each Approach**

*   **`find()`**: Pros:
    *   Returns the first matching element immediately.
    *   Can be more efficient when dealing with small arrays or specific use cases.
*   Cons:
    *   May return early with an incorrect result if there are false positives in the testing function.
*   **`some()`**: Pros:
    *   More likely to return a correct result, especially for large arrays or edge cases.
*   Cons:
    *   Returns as soon as it finds one match, which might not be desirable if you need all matches.

**Library**

There's no specific library mentioned in the benchmark definition. However, it assumes that the `arr` array is accessible and has methods like `push()`, `concat()`, and `length`.

**Special JS Feature/Syntax**

None are mentioned in this case, but keep in mind that some features or syntax might affect performance, such as:

*   ES6 features: Classes, Promises, async/await.
*   Native functions: BigInt support, Intl API.

These should be avoided if possible to ensure fair comparisons.

Related benchmarks:

JS some vs find 2 (version: 0)

Comparing performance of: Find vs Some

Created: 6 years ago by: Registered User

Jump to the latest result

Find

Some

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):