Benchmark: lodash.each vs Object.forEach New GOK

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:

for
for(var i = 0; i < value.length; i++) {}
forEach
value.forEach(function(v,i) {})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for
forEach

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

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

**Benchmark Definition**

The benchmark is testing two JavaScript approaches: `for` loop and `forEach` method.

The script preparation code defines an array `value` with three objects, each containing a property. The HTML preparation code includes a reference to the Lodash library, which is used in the benchmark.

**Options Compared**

There are two options being compared:

1. **For Loop**: A traditional JavaScript loop that iterates over the elements of the `value` array using an index variable `i`.
2. **ForEach Method**: The `forEach` method, introduced in ECMAScript 5 (ES5), which allows iterating over arrays without using a traditional loop.

**Pros and Cons**

**For Loop:**

Pros:

* Native support for all browsers
* Easy to understand and implement
* Can be used with any array type

Cons:

* Can be slower than `forEach` due to the overhead of index management
* May require more memory, as each iteration creates a new local scope

**ForEach Method:**

Pros:

* Faster execution speed compared to traditional loops
* Reduces memory usage, as it doesn't create multiple local scopes
* Supports array methods like `map`, `filter`, and `reduce`

Cons:

* Introduced in ES5, so may not be supported by older browsers (e.g., IE8-)
* Requires the Lodash library for implementation

**Lodash Library**

The Lodash library is used to implement the `forEach` method. It provides a convenient way to iterate over arrays without having to write traditional loops.

**Special JavaScript Feature or Syntax**

In this benchmark, no special JavaScript feature or syntax is being tested. The focus is on comparing two established approaches for iterating over arrays: `for` loop and `forEach` method.

**Other Alternatives**

If you prefer not to use the Lodash library, you could implement the `forEach` method using a traditional loop:

```javascript
value.forEach(function(v) {
  // code here
});
```

Alternatively, if you're targeting older browsers that don't support `forEach`, you can use libraries like jQuery or other array methods.

Keep in mind that this benchmark is specifically designed to compare the performance of these two approaches. If you want to explore other iteration techniques, such as using `reduce` or implementing your own custom loop, feel free to add additional test cases!

Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Browser/OS: Chrome 68 on Mac OS X 10.13.6

View result in a separate tab

Test name	Executions per second
for	2369053.2 Ops/sec
forEach	9148723.0 Ops/sec

Related benchmarks:

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

Comparing performance of: for vs forEach

Created: 6 years ago by: Guest

Jump to the latest result

for

forEach

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):