Benchmark: native find vs lodash _.find with null values and object

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 = {
  'id1': { 'user': 'joey',  'age': 32 },
  'id2': { 'user': 'ross',    'age': 41 },
  'id3': { 'user': 'chandler', 'age': 39 },
  'id4': { 'user': 'joey',  'age': 32 },
  'id5': { 'user': 'ross',    'age': 41 },
  'id6': { 'user': 'chandler', 'age': 39 },
'idNull':null,
'id7': { 'user': 'joey',  'age': 32 },
  'id8': { 'user': 'ross',    'age': 41 },
  'id9': { 'user': 'chandler', 'age': 39 },
'id10': { 'user': 'joey',  'age': 32 },
  'id11': { 'user': 'ross',    'age': 41 },
  'id12': { 'user': 'chandler', 'age': 39 }
};

Tests:

array find
// Native Object.values(users).find(function (o) { return o.age < 40; })
_.find
_.find(users, function (o) { return o.age < 40; })

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:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0

Browser/OS: Firefox 86 on Windows

View result in a separate tab

Test name	Executions per second
array find	4233395.0 Ops/sec
_.find	3818025.5 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and explain what is tested, compared, and their pros and cons.

**Benchmark Definition JSON**

The benchmark consists of two test cases:

1. **Native find**: This test case uses JavaScript's built-in `Object.values()` and `Array.prototype.find()` methods to find an object with a specific property (`age < 40`) in the `users` object.
2. **Lodash _.find**: This test case uses the popular utility library Lodash, specifically its `_find()` method, to achieve the same result as the native `find()` method.

**Comparison**

The comparison between these two approaches is primarily about performance and readability. The native `Object.values()` and `Array.prototype.find()` methods are compared with Lodash's `_find()` method.

**Pros and Cons**

**Native find:**

Pros:

* No external dependencies, making it a self-contained solution.
* Can be more readable for developers familiar with JavaScript's built-in methods.

Cons:

* May not be as performant as Lodash's optimized implementation.
* Requires understanding of JavaScript's built-in methods.

**Lodash _.find:**

Pros:

* Optimized and tested implementation, likely to be faster than native methods.
* Reduces the need for developers to understand low-level JavaScript details.
* Adds utility functionality through Lodash's comprehensive set of methods.

Cons:

* External dependency, requiring additional setup and potential performance overhead due to HTTP requests.
* May introduce a layer of abstraction that can make code harder to read and debug.

**Library: Lodash**

Lodash is a popular JavaScript utility library developed by Isaac Schlueter in 2012. It provides a wide range of high-quality functions for tasks such as array manipulation, object transformation, and functional programming. The `_find()` method is one of the core functions in Lodash, designed to find the first element in an array that satisfies a provided predicate function.

**Special JS Feature/Syntax: None**

There are no special JavaScript features or syntax used in these test cases.

**Other Alternatives**

For those interested in exploring alternative approaches, here are some other methods you can use:

1. **Vanilla Loop**: Implement a custom loop to iterate over the `users` object and find the desired result.
```javascript
for (var i = 0; i < Object.keys(users).length; i++) {
    if (users[Object.keys(users)[i]].age < 40) {
        // Result found!
    }
}
```
2. **Using `filter()`**: Utilize the `Array.prototype.filter()` method to find objects that satisfy the condition.
```javascript
var result = Object.values(users).filter(function (o) { return o.age < 40; });
```
These alternatives may not be as efficient or readable as the native methods and Lodash's implementation, but they demonstrate alternative ways to achieve the same result.

Related benchmarks:

native find vs lodash _.find with null values and object (version: 0)

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

Comparing performance of: array find vs _.find

Created: 3 years ago by: Guest

Jump to the latest result

array find

_.find

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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