Benchmark: lodash.each vs lodash.forEach vs Object.forEach

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var value = [{a: 30310}, {b: 100303}, {c: 3040494}]

Tests:

lodash.each
_.each(value, function(v,i) {})
native
value.forEach(function(v,i) {})
lodash.forEach
_.forEach(value, function(v,i) {})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash.each
native
lodash.forEach

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what is being tested.

**Benchmark Overview**

The benchmark compares three approaches for iterating over an array: native `forEach`, `lodash.each`, and `lodash.forEach`. The test case uses a predefined value array with 3 elements, each containing a different property (a, b, c) with varying values.

**Options Compared**

1. **Native `forEach`**: This is the built-in JavaScript method for iterating over an array. It takes two arguments: a callback function and an optional thisArg.
2. **`lodash.each`**: A utility function from the Lodash library that iterates over an object (or array) and calls a provided callback function on each element.
3. **`lodash.forEach`**: Another utility function from Lodash, similar to `each`, but designed for arrays instead of objects.

**Pros and Cons**

* **Native `forEach`**:
	+ Pros: Built-in method, easy to use, fast execution (due to native compilation).
	+ Cons: May not be optimized for performance, less readable code due to callback function.
* **`lodash.each`**:
	+ Pros: More readable code, allows for early return functionality, and has a larger community of developers who have used it.
	+ Cons: Requires importing Lodash library, adds overhead to execution (due to dynamic loading).
* **`lodash.forEach`**:
	+ Pros: Similar to `each`, but optimized for arrays, making it potentially faster than `each`.
	+ Cons: Less readable code than `each`, requires importing Lodash library.

**Library and Purpose**

Lodash is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object transformation, and more. In this benchmark, the two relevant functions are used to iterate over arrays:

* `lodash.each`: Iterates over an object (or array) and calls a callback function on each element.
* `lodash.forEach`: Iterates over an array and calls a callback function on each element.

**Special JS Features or Syntax**

None mentioned in this benchmark. However, it's worth noting that some modern JavaScript features like async/await, generators, and iterators might affect the execution of these methods.

**Other Alternatives**

If you want to explore other alternatives for iterating over arrays, here are a few options:

* `Array.prototype.forEach()`: The built-in method is often used in conjunction with the `forEach` property on an array.
* `for...of` loop: A modern approach to looping through arrays using a for loop with the of keyword.
* `map()`, `filter()`, and `reduce()` methods: These methods can be used to transform, filter, or reduce an array, but may not provide the same level of iteration as `forEach`.

Keep in mind that each approach has its trade-offs in terms of readability, performance, and ease of use. The choice ultimately depends on your specific requirements and coding style preferences.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:100.0) Gecko/20100101 Firefox/100.0

Browser/OS: Firefox 100 on Ubuntu

View result in a separate tab

Test name	Executions per second
lodash.each	14263258.0 Ops/sec
native	98018536.0 Ops/sec
lodash.forEach	12119508.0 Ops/sec

Related benchmarks:

lodash.each vs lodash.forEach vs Object.forEach (version: 0)

tv

Comparing performance of: lodash.each vs native vs lodash.forEach

Created: 2 years ago by: Guest

Jump to the latest result

lodash.each

native

lodash.forEach

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):