Benchmark: native find vs lodash _.find_fork

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>

Script Preparation code:

var users = Array.from(Array(10000).keys()).map(age => ([{
        'user': age,
        'age': age
    },
]))

Tests:

array find
// Native users.find(function (o) { return o.age < 5000; })
_.find
_.find(users, function (o) { return o.age < 5000; })

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array find
_.find

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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I'll break down the provided benchmark definitions and explain what's being tested, the options compared, pros and cons of each approach, and other considerations.

**Benchmark Definition JSON**

The provided JSON represents a microbenchmarking test created using MeasureThat.net. It has three main sections:

1. **Script Preparation Code**: This section is executed before running the benchmark tests. In this case, it generates an array of 10,000 objects with 'user' and 'age' properties.
2. **Html Preparation Code**: This section includes a script tag that loads the Lodash library version 4.17.11. Lodash is a popular JavaScript utility library.
3. **Benchmark Definition**: This section defines two benchmark tests:

* `array find`: Tests finding an element in an array using the native `find()` method.
   * `_.find`: Tests finding an element in an array using the `_find` function from the loaded Lodash library.

**Options Compared**

The two options being compared are:

* **Native `find()`**: The built-in `find()` method of JavaScript arrays, which returns the first element that satisfies the provided callback function.
* **Lodash `_find`**: A higher-order function provided by the Lodash library that performs a similar operation as the native `find()` method.

**Pros and Cons**

*   **Native `find()`**:
    *   Pros:
        *   Faster execution, since it doesn't incur the overhead of loading an external library.
        *   Lower memory usage, as it doesn't load an additional library.
    *   Cons:
        *   Not all browsers or environments support native `find()`, so this benchmark may not be representative for those platforms.
*   **Lodash `_find`**:
    *   Pros:
        *   Well-tested and widely supported across various browsers and environments.
        *   Provides additional features and functionality that might be useful in certain situations.
    *   Cons:
        *   Slower execution, due to the overhead of loading an external library and potential JIT compilation.
        *   Higher memory usage, as it loads an additional library.

**Other Considerations**

*   The test cases use a simple array of 10,000 objects with 'user' and 'age' properties. This can lead to a large number of iterations in the benchmark, making even small differences between the two methods more noticeable.
*   The benchmark only tests finding an element in the array that satisfies a specific condition (i.e., `o.age < 5000`). This might not accurately represent real-world scenarios where you need to find elements that satisfy more complex conditions.

**Library: Lodash**

Lodash is a popular JavaScript utility library developed by Isaac Schlueter and Dean Edwards. It provides over 120 functions for tasks such as:

*   String manipulation
*   Array and object iteration
*   Function composition
*   Utilities for working with dates, numbers, and more

In this benchmark, Lodash's `_find` function is used to find an element in the `users` array that satisfies a given condition. The `_find` function takes two arguments: the array to search and the callback function to execute on each element.

**Special JS Feature/Syntax**

There isn't any special JavaScript feature or syntax being tested in this benchmark, as both native `find()` and Lodash's `_find` are implementing the standard array method.

Related benchmarks:

native find vs lodash _.find_fork (version: 0)

Compare the new ES6 spread operator with the traditional concat() method

Comparing performance of: array find vs _.find

Created: 4 years ago by: Guest

Jump to the latest result

array find

_.find

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):