Benchmark: lodash .foreach vs JS native foreach

HTML Preparation code:


<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Script Preparation code:

var value = [{a: 30310}, {b: 100303}, {c: 3040494}, {d: 6542321}, {e: 13123531}]

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
native

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 benchmark and explain what's being tested.

**Overview**

The test compares the performance of two approaches: using Lodash's `forEach` function versus the native JavaScript `forEach` method on an array of objects.

**Benchmark Definition**

The JSON defines a single benchmark with two test cases:

1. "lodash" - This test case uses Lodash's `forEach` function to iterate over the `value` array and log each element.
2. "native" - This test case uses the native JavaScript `forEach` method on the same `value` array and logs each element.

**Script Preparation Code**

The script preparation code defines an array of objects: `var value = [{a: 30310}, {b: 100303}, {c: 3040494}, {d: 6542321}, {e: 13123531}]`. This array is used as the input for both test cases.

**Html Preparation Code**

The HTML preparation code includes a script tag that loads Lodash version 4.17.10 from a CDN. This suggests that the benchmark is designed to run in a browser environment where Lodash is not already included.

**What's being tested?**

In essence, this benchmark tests the performance difference between using an external library (Lodash) versus the native JavaScript `forEach` method on arrays. The test measures how many executions per second each approach can complete on a given device running Chrome 85 on Linux.

**Options compared**

The two options being compared are:

1. **Lodash's `forEach` function**: This is an external library that provides a convenient way to iterate over arrays and objects. It's often used when working with large datasets or complex data structures.
2. **Native JavaScript `forEach` method**: This is the built-in method for iterating over arrays in JavaScript. It's generally faster than using an external library but may require more manual setup.

**Pros and cons**

Here are some pros and cons of each approach:

* **Lodash's `forEach` function**:
	+ Pros: Convenient, easy to use, often provides additional functionality (e.g., handling errors).
	+ Cons: External dependency, potentially slower due to the overhead of loading the library.
* **Native JavaScript `forEach` method**:
	+ Pros: Faster, more control over iteration process, no external dependencies.
	+ Cons: Requires more manual setup and may require knowledge of array methods.

**Library usage**

In this case, Lodash's `forEach` function is used in the benchmark. Lodash is a popular JavaScript utility library that provides a set of functional programming helpers. The `forEach` function is one of these helpers, allowing users to iterate over arrays and objects in a concise way.

**Special JS feature or syntax**

There are no special JS features or syntax mentioned in this benchmark. It's a straightforward test of the performance difference between two iteration methods.

**Alternatives**

If you were looking for alternative ways to measure JavaScript performance, some options include:

* Using Node.js and the `perf_hooks` module to measure execution time.
* Utilizing WebAssembly (WASM) benchmarks like the ones provided by the [WASM Benchmarks](https://github.com/wasm-benchmarks/wasm-benchmarks).
* Creating custom benchmarking tests using a JavaScript testing framework like Jest or Mocha.

Keep in mind that each alternative has its own strengths and weaknesses, and the choice of which one to use depends on your specific needs and goals.

Related benchmarks:

lodash .foreach vs JS native foreach (version: 0)

Comparing performance of: lodash vs native

Created: 5 years ago by: Guest

Jump to the latest result

lodash

native

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):