Benchmark: lodash.each vs Object.forEach

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.17.5/lodash.min.js"></script>

Script Preparation code:

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

Tests:

lodash
_.map(values, function(v,i) {})
Array
values.map(function(v,i) {})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
Array

Fastest: N/A

Slowest: N/A

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

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I'd be happy to explain what's being tested in the provided JSON.

**Benchmark Definition**

The benchmark is designed to compare two approaches: using `lodash.each` and using the built-in `Object.forEach` method in JavaScript.

**Options Compared**

* `_.each` (from Lodash library): This function iterates over an array or object and executes a callback function for each item.
* `Array.forEach` (built-in JavaScript method): This method also iterates over an array and executes a callback function for each item.

**Pros and Cons of Each Approach**

* `_lodash.each`:
	+ Pros: More flexible, can iterate over both arrays and objects; provides additional utility functions.
	+ Cons: Requires importing the Lodash library, which adds extra overhead.
* `Array.forEach`:
	+ Pros: Built-in method, no additional library required; concise syntax.
	+ Cons: Limited to iterating over arrays only.

**Other Considerations**

When using `_lodash.each`, it's essential to note that the callback function receives three arguments: the current item, its index in the array/object, and the array/object itself. In contrast, `Array.forEach` only passes two arguments: the current item and its index.

**Library Used (Lodash)**

The Lodash library provides a comprehensive set of utility functions for JavaScript, including `each`. It's widely used in the industry due to its flexibility and ease of use. However, importing it also adds extra overhead compared to using built-in methods like `Array.forEach`.

**Special JS Feature or Syntax**

There isn't any specific special JavaScript feature or syntax being tested here. Both approaches are standard and widely supported by most modern browsers.

**Alternative Approaches**

Other alternative approaches for iterating over arrays could include:

* Using a traditional `for` loop: `for (var i = 0; i < array.length; i++) { ... }`
* Using a `while` loop: `var i = 0; while (i < array.length) { ... }`
* Using `Array.prototype.reduce`: Not applicable in this specific benchmark, as it's designed for aggregating values.

In general, when choosing an iteration method, consider the following factors:

1. Readability and maintainability
2. Performance (e.g., using built-in methods vs importing external libraries)
3. Flexibility and versatility (e.g., handling different data structures like objects or arrays)
4. Browser support

Related benchmarks:

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

Comparing performance of: lodash vs Array

Created: 8 years ago by: Guest

Jump to the latest result

lodash

Array

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):