Benchmark: Lodash.js vs Native1

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var max1 = 100000; // 100,000 (100 Thousand)
var max2 = 10000000; // 10,000,000 (10 Million)
var max3 = 100000000; // 100,000,000 (100 Million)

var arr1 = [];
//for (var i = 0; i <= max1; i++) { arr1.push(i); }

var arr2 = [];
for (var i = 0; i <= max2; i++) { arr2.push(i); }

var arr3 = [];
//for (var i = 0; i <= max3; i++) { arr3.push(i); }

var numberOne = 10;
var numberTwo = 2;

Tests:

Native
arr2.forEach(function (element, index) { element = element*2; }); numberOne / numberTwo;
Lodash.js filter
_.each(arr2, function (element, index) { element = element*2; }); _.divide(numberOne, numberTwo);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash.js filter

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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Autogenerated LLM Summary (model llama3.2:3b, generated one year 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 the performance of two approaches:

1. Native (JavaScript built-in functions)
2. Lodash.js (a popular JavaScript utility library)

**Test Case 1: arr2.forEach**

In this test case, the code uses a `forEach` loop to iterate over an array (`arr2`) and multiply each element by 2. After the loop, it divides a number (`numberOne`) by another number (`numberTwo`). The objective is to measure how fast the JavaScript engine can execute this sequence of operations.

**Test Case 2: Lodash.js _.each**

In this test case, the code uses the `_.each` function from the Lodash.js library to iterate over an array (`arr2`) and multiply each element by 2. After the loop, it divides a number (`numberOne`) by another number (`numberTwo`). The objective is to measure how fast the JavaScript engine can execute this sequence of operations using the Lodash.js library.

**Pros and Cons**

* **Native Approach:**
	+ Pros:
		- Typically faster since it doesn't involve an external library.
		- More efficient memory usage since it doesn't require loading a separate library.
	+ Cons:
		- May require more manual code management (e.g., handling array indexing, bounds checking).
* **Lodash.js Approach:**
	+ Pros:
		- Often faster for certain types of operations (e.g., array manipulation) due to optimized implementation.
		- Provides a convenient and concise way to perform common tasks.
	+ Cons:
		- Slower than native code since it involves an external library.
		- Additional memory usage due to loading the Lodash.js library.

**Library: Lodash.js**

Lodash.js is a popular JavaScript utility library that provides a wide range of functions for various tasks, such as array manipulation, string manipulation, and more. In this benchmark, `_.each` is used to iterate over an array and perform an operation on each element.

**Special JS Feature/Syntax: None**

There are no special JavaScript features or syntaxes being tested in this benchmark.

**Other Alternatives**

If the Lodash.js library were not used, other alternatives for array iteration could be:

* `for` loop
* Array methods like `map()`, `forEach()` (native), and `every()`
* Other libraries like Ramda.js or Underscore.js

Keep in mind that the performance differences between these approaches can vary depending on the specific use case, JavaScript engine, and hardware.

Related benchmarks:

Lodash.js vs Native1 (version: 0)

Comparing performance of: Native vs Lodash.js filter

Created: 2 years ago by: Guest

Jump to the latest result

Native

Lodash.js filter

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):