Benchmark: Array functions diff vs filter

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js'></script>

Script Preparation code:

var listA = _.range(10000)
var listB = _.range(9000)

Tests:

test 1
const r1 = _.difference(listA, listB)
test 2
const r2 = _.filter(listA, x => !_.includes(listB, x))
test 3
const r3 = listA.filter(x => !_.includes(listB, x))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test 1
test 2
test 3

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 dive into the world of JavaScript microbenchmarks!

The provided JSON represents a benchmark created on MeasureThat.net, where users can create and run JavaScript microbenchmarks. The goal is to compare different approaches for array functions.

**Benchmark Definition**

The benchmark definition includes three test cases:

1. `test 1`: Uses Lodash's `difference` function to find the difference between two arrays.
2. `test 2`: Uses Lodash's `filter` function to create a new array with elements that do not exist in another array.
3. `test 3`: Manually creates an array filter using JavaScript syntax.

**Options Compared**

The benchmark compares three options:

1. **Lodash's `difference` and `filter` functions**: These functions are part of the Lodash library, which provides a set of utility functions for functional programming.
2. **Manual array filtering using JavaScript syntax**: This approach uses native JavaScript methods to filter an array.

**Pros and Cons**

Here are some pros and cons of each approach:

**Lodash's `difference` and `filter` functions:**

Pros:

* More concise and readable code
* Handles edge cases, such as empty arrays or duplicate elements
* Optimized for performance

Cons:

* Requires including an additional library (Lodash)
* May have licensing restrictions or dependencies

**Manual array filtering using JavaScript syntax:**

Pros:

* No additional library dependency
* More control over the implementation
* Can be optimized for specific use cases

Cons:

* More verbose code
* May require more manual optimization to achieve optimal performance

**Other Considerations**

When choosing an approach, consider factors such as:

* Code readability and maintainability
* Performance requirements (e.g., real-time applications)
* Licensing restrictions or dependencies
* Desired level of control over the implementation

**Library: Lodash**

Lodash is a popular JavaScript library that provides a set of utility functions for functional programming. The `difference` and `filter` functions are part of the core Lodash library.

**Special JS Feature/Syntax:**

None mentioned in this benchmark definition.

Now, let's talk about alternatives to these approaches:

* Other array filtering libraries, such as `lodash-es`, `underscore.js`, or `momentjs`
* Custom implementation using native JavaScript methods (e.g., `forEach`, `map`, and `every`)
* Using functional programming concepts, such as higher-order functions and currying

Keep in mind that the choice of approach depends on specific requirements and constraints. MeasureThat.net's benchmarking framework provides a convenient way to compare different approaches and optimize performance.

Related benchmarks:

Array functions diff vs filter (version: 0)

Comparing performance of: test 1 vs test 2 vs test 3

Created: 3 years ago by: Registered User

Jump to the latest result

test 1

test 2

test 3

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):