Benchmark: Lodash range test

HTML Preparation code:

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

Script Preparation code:

var max = 10;

var arr1 = [1,2,3,4,5,6,7,8,9,10];
var arr2 = Array(max).fill(1).map((x, y) => x + y)
var arr3 = _.range(0,max)

Tests:

Manual Native Array
_.forEach(arr1, (element, index) => { console.log(element); });
Vanilla Javascript Range
_.forEach(arr2, (element, index) => { console.log(element); });
Lodash Range
_.forEach(arr3, (element, index) => { console.log(element); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Manual Native Array
Vanilla Javascript Range
Lodash Range

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):

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Let's break down the benchmark and its various components.

**Benchmark Definition JSON**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. It consists of three main parts:

1. **Script Preparation Code**: This section defines the initial conditions for the benchmark. In this case, it creates two arrays: `arr1` with numbers from 1 to 10 and `arr2`, which is generated by filling an array of length equal to `max` (set to 10) with numbers from 0 to 9, and then mapping each element to its index plus the element value. The third array, `arr3`, is created using Lodash's `range()` function.
2. **Html Preparation Code**: This section includes a script tag that loads the Lodash library (version 4.17.4) from a CDN.
3. **Benchmark Definition**: This section defines the actual benchmarking code for each test case.

**Individual Test Cases**

There are three test cases, each with its own benchmark definition:

1. **Manual Native Array**: This test case uses the `forEach` method on an array created in the script preparation code.
2. **Vanilla Javascript Range**: This test case uses a similar approach to create an array of numbers from 0 to 9 and then maps each element to its index plus the element value using `forEach`.
3. **Lodash Range**: This test case uses Lodash's `range()` function to generate an array of numbers from 0 to 9.

**Options Compared**

The benchmark compares three approaches:

1. Using the `forEach` method on a native JavaScript array (Manual Native Array).
2. Creating an array of numbers using vanilla JavaScript and then mapping each element using `forEach` (Vanilla Javascript Range).
3. Using Lodash's `range()` function to generate an array of numbers (Lodash Range).

**Pros and Cons of Each Approach**

1. **Manual Native Array**: Pros:
	* No external dependencies required.
	* Can be optimized for specific use cases.
Cons:
	* Requires manual looping, which can lead to performance issues if not implemented correctly.
2. **Vanilla Javascript Range**: Pros:
	+ Uses standard JavaScript features.
	+ Easy to understand and implement.
Cons:
	+ May have performance overhead due to the extra steps required to create the array.
3. **Lodash Range**: Pros:
	+ Provides a convenient and efficient way to generate arrays of numbers.
	* Can be optimized for performance.
Cons:
	+ Requires an external dependency (Lodash).
	* May not be suitable for all use cases.

**Library: Lodash**

Lodash is a popular JavaScript library that provides a collection of functions for various tasks, such as array manipulation, string processing, and more. In this benchmark, the `range()` function is used to generate an array of numbers from 0 to 9.

**Special JS Feature or Syntax**

There are no specific JavaScript features or syntaxes mentioned in the provided code snippet.

**Other Alternatives**

If you're interested in exploring alternative approaches or libraries for generating arrays of numbers, some options include:

1. **Array.from()**: A modern JavaScript method that creates an array from an iterable object.
2. **Math.random()**: A function that generates a random number between 0 (inclusive) and 1 (exclusive).
3. **Generator functions**: Can be used to create arrays of numbers or other values on the fly.

Keep in mind that each approach has its pros and cons, and the best choice depends on your specific use case and performance requirements.

Related benchmarks:

Lodash range test (version: 2)

Comparing performance of: Manual Native Array vs Vanilla Javascript Range vs Lodash Range

Created: 5 years ago by: Registered User

Jump to the latest result

Manual Native Array

Vanilla Javascript Range

Lodash Range

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):