Benchmark: array.find vs _.find

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js'></script>

Script Preparation code:

var templates = [
    { name: 'a',  b: 123, c: 234, d: 567 },
 	{ name: 'b',  b: 123, c: 234, d: 567 },
   	{ name: 'c',  b: 123, c: 234, d: 567 },
   	{ name: 'd',  b: 123, c: 234, d: 567 },
   	{ name: 'e',  b: 123, c: 234, d: 567 },
   	{ name: 'f',  b: 123, c: 234, d: 567 },
   	{ name: 'g',  b: 123, c: 234, d: 567 },
   	{ name: 'h',  b: 123, c: 234, d: 567 },
]
var nameToFind = 'e'

Tests:

native
templates.find(t => t.name === nameToFind)
lodash
_.find(templates, {name: nameToFind})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
native
lodash

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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Let's break down the provided JSON and explain what's being tested, the options compared, their pros and cons, and other considerations.

**Benchmark Definition:**

The benchmark is comparing two approaches to find an element in an array:

1. **Native JavaScript**: `templates.find(t => t.name === nameToFind)`
2. **Lodash (JavaScript library)**: `_find(templates, {name: nameToFind})`

Both approaches aim to find the first element in the `templates` array that matches the condition specified in the `nameToFind` variable.

**Native JavaScript Approach:**

* This approach uses the built-in `Array.prototype.find()` method, which returns the first element in the array that satisfies the provided callback function.
* The callback function takes an element from the array as its argument and returns a boolean value indicating whether it matches the condition.
* In this case, the callback function simply checks if the element's `name` property is equal to `nameToFind`.
* Pros:
	+ Built-in method with no additional dependencies.
	+ Compact and expressive code.
* Cons:
	+ May be slower due to overhead of JavaScript engine and interpreter.
	+ Limited optimization opportunities.

**Lodash Approach:**

* This approach uses the Lodash library, which provides a function called `_find()` that finds the first element in an array that satisfies a condition.
* The condition is specified as an object with a `name` property that matches the value of `nameToFind`.
* Pros:
	+ Provides a consistent and standardized way to perform similar operations across different libraries and frameworks.
	+ Optimized for performance and reliability.
* Cons:
	+ Requires loading the Lodash library, which may introduce additional overhead.
	+ May not be as compact or expressive as native JavaScript code.

**DevicePlatform:** `Desktop`

This indicates that the benchmark was run on a desktop device (i.e., not on mobile or tablet devices).

**OperatingSystem:** `Linux`

This indicates that the benchmark was run on a Linux-based operating system.

**ExecutionsPerSecond:**

These values represent the average number of executions per second for each test case. A higher value typically indicates faster performance.

* **Native JavaScript**: 1,908,761.5 executions/second
* **Lodash**: 1,046,668.375 executions/second

Based on these results, the native JavaScript approach appears to be slightly faster than the Lodash approach.

**Other Considerations:**

* The benchmark is designed to measure performance in a specific context (finding an element in an array) and may not generalize well to other use cases.
* The results are sensitive to the specific implementation details of each library (e.g., how JavaScript engines handle array operations).
* Other libraries or approaches might be faster or more suitable for certain scenarios, so this benchmark should be taken as a starting point rather than a definitive answer.

**Alternatives:**

Other alternatives to Lodash for finding elements in arrays include:

1. **Array.prototype.some()**: Similar to `find()`, but returns true if any element matches the condition.
2. **Array.prototype.filter()`: Returns an array of all elements that match the condition, rather than just the first one.
3. **Vanilla JavaScript approaches**: Implement custom loops or recursive functions to find elements in arrays.

Keep in mind that these alternatives may have different performance characteristics and trade-offs compared to Lodash or native JavaScript.

Related benchmarks:

array.find vs _.find (version: 0)

Comparing performance of: native vs lodash

Created: 6 years ago by: Guest

Jump to the latest result

native

lodash

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):