Benchmark: Find vs some lodash4

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>

Script Preparation code:

var a = ['hello', 'a', 'bc'];

Tests:

Find
var c = 0; var b = a.indexOf('bc'); if(b >= 0) c++;
Some
var c = 0; var b = _.some(a, item => item === 'bc'); if(b) c++
Find not
var c = 0; var b = a.indexOf('bcc'); if(b < 0) c++;
Some not
var c = 0; var b = _.some(a, item => item === 'bcc'); if(!b) c++

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Find
Some
Find not
Some not

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its different aspects.

**Benchmark Definition**

The benchmark is defined by two main parts:

1. **Script Preparation Code**: This code snippet is executed before each test case to prepare the environment. In this case, it simply defines an array `a` containing three elements: `'hello'`, `'a'`, and `'bc'`. The purpose of this preparation code is to provide a constant input for the subsequent benchmark tests.
2. **Html Preparation Code**: This code snippet is executed before each test case as well. It includes a script tag that loads the Lodash library version 4.17.5 from a CDN. Lodash is a popular JavaScript utility library that provides various functions for tasks such as array manipulation, string manipulation, and functional programming.

**Individual Test Cases**

There are four test cases in total:

1. **Find**: This test case uses the `indexOf()` method to search for the string `'bc'` within the array `a`. If the element is found (i.e., `indexOf() >= 0`), it increments a counter variable `c`.
2. **Some**: This test case uses the `_some()` function from Lodash to check if any element in the array `a` matches the condition `item === 'bc'`. If a match is found (`_some()` returns `true`), it increments another counter variable `c`.
3. **Find not**: Similar to the `Find` test case, but with an incorrect assumption about the behavior of `indexOf()`.
4. **Some not**: Similar to the `Some` test case, but with an incorrect assumption about the behavior of `_some()`.

**Options Compared**

The benchmark compares two options for searching and checking elements in arrays:

1. **Native JavaScript methods** (e.g., `indexOf()`, `_some()`)
2. **Lodash functions** (e.g., `_.some()`, `_.indexOf()`)

**Pros and Cons of Each Approach**

**Native JavaScript methods:**

Pros:

* Typically faster than Lodash functions, as they are implemented in native code.
* May have better performance for large arrays or complex searches.

Cons:

* Can be less readable and more error-prone due to the need to manually handle edge cases and errors.

**Lodash functions:**

Pros:

* More readable and maintainable, as Lodash provides a standardized interface for common tasks.
* Easier to use and compose functions together.

Cons:

* May have slower performance compared to native JavaScript methods, especially for large arrays or complex searches.

**Other Considerations**

* **Functionality**: Both approaches can achieve the same results, but Lodash functions may provide additional features and options that are not available in native JavaScript methods.
* **Maintenance**: As Lodash is a third-party library, it requires an external dependency, which can add complexity to maintenance and updates.

**Library Usage - Lodash**

Lodash is a popular JavaScript utility library that provides various functions for tasks such as:

* Array manipulation (e.g., `_some()`, `_indexOf()`)
* String manipulation (e.g., `_.trim()`, `_.repeat()`)

In this benchmark, Lodash is used to provide an alternative implementation of the array search and check functions.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax used in these test cases. They only rely on standard JavaScript methods and functions.

Now that we've gone through the benchmark, let's discuss some alternatives:

* **Other JavaScript libraries**: There are other JavaScript libraries available for array manipulation and search, such as Moment.js (for date manipulation) or MathJax (for mathematical expressions).
* **Native JavaScript modules**: As of ECMAScript 2020, native JavaScript modules provide a new way to import and use external code in a more modular fashion.
* **Custom implementations**: Developers can always choose to implement their own array search and check functions from scratch, which can be useful for specific use cases or performance-critical applications.

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Browser/OS: Chrome 78 on Windows

View result in a separate tab

Test name	Executions per second
Find	11064013.0 Ops/sec
Some	2822254.5 Ops/sec
Find not	11120822.0 Ops/sec
Some not	2879480.2 Ops/sec

Related benchmarks:

Find vs some lodash4 (version: 0)

Comparing performance of: Find vs Some vs Find not vs Some not

Created: 5 years ago by: Guest

Jump to the latest result

Find

Some

Find not

Some not

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):