Benchmark: Underscore pluck vs map 5

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.0/underscore.js"></script>

Script Preparation code:

  var data = [
    {id: 1, status:'ok'},
    {id: 2, status:'ok'},
    {id: 3, status:'ok'},
    {id: 4, status:'ok'},
    {id: 5, status:'ok'},
    {id: 6, status:'ok'},
    {id: 7, status:'ok'},
    {id: 8, status:'ok'},
    {id: 9, status:'ok'},
    {id: 10, status:'ok'},
	{id: 1, status:'ok'},
    {id: 2, status:'ok'},
    {id: 3, status:'ok'},
    {id: 4, status:'ok'},
    {id: 5, status:'ok'},
    {id: 6, status:'ok'},
    {id: 7, status:'ok'},
    {id: 8, status:'ok'},
    {id: 9, status:'ok'},
    {id: 10, status:'ok'},
    {id: 1, status:'ok'},
    {id: 2, status:'ok'},
    {id: 3, status:'ok'},
    {id: 4, status:'ok'},
    {id: 5, status:'ok'},
    {id: 6, status:'ok'},
    {id: 7, status:'ok'},
    {id: 8, status:'ok'},
    {id: 9, status:'ok'},
    {id: 10, status:'ok'},
    {id: 1, status:'ok'},
    {id: 2, status:'ok'},
    {id: 3, status:'ok'},
    {id: 4, status:'ok'},
    {id: 5, status:'ok'},
    {id: 6, status:'ok'},
    {id: 7, status:'ok'},
    {id: 8, status:'ok'},
    {id: 9, status:'ok'},
    {id: 10, status:'ok'},
    {id: 1, status:'ok'},
    {id: 2, status:'ok'},
    {id: 3, status:'ok'},
    {id: 4, status:'ok'},
    {id: 5, status:'ok'},
    {id: 6, status:'ok'},
    {id: 7, status:'ok'},
    {id: 8, status:'ok'},
    {id: 9, status:'ok'},
    {id: 10, status:'ok'},
  ];

Tests:

Underscore
var result = _.pluck(data, "id");
Native
var result = data.map(item => item.id);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Underscore
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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**Benchmark Explanation**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents a benchmark test case called "Underscore pluck vs map 5". This test compares the performance of two approaches: using the Underscore.js library's `pluck` method versus the native `map` function in JavaScript.

**Options Compared**

The benchmark tests two options:

1. **Underscore.js's `pluck` method**: This option uses the `pluck` function from the Underscore.js library to extract a subset of values from an array. In this case, it is used to extract the `id` property from each object in the `data` array.
2. **Native JavaScript's `map` function**: This option uses the built-in `map` function to create a new array with the results of applying a provided function to each element in the original array. In this case, it is used to extract the `id` property from each object in the `data` array.

**Pros and Cons**

Here are some pros and cons of each approach:

**Underscore.js's `pluck` method**

Pros:

* Can be more efficient than using native `map` for small arrays.
* Reduces boilerplate code.

Cons:

* Adds an external dependency (the Underscore.js library).
* May have additional overhead due to the library's implementation.

**Native JavaScript's `map` function**

Pros:

* Does not add any external dependencies.
* Can be more flexible and customizable.

Cons:

* Requires more boilerplate code to extract a subset of values from an array.
* May be slower for large arrays.

**Other Considerations**

Both approaches have their trade-offs. The Underscore.js library provides a simple and efficient way to perform common data manipulation tasks, but it requires adding an external dependency. On the other hand, using native JavaScript's `map` function gives more control over the implementation, but may require more code.

**Library Used - Underscore.js**

Underscore.js is a popular JavaScript library that provides a set of functional programming helpers, including the `pluck` method used in this benchmark. The `pluck` method takes two arguments: an array and a property name (in this case, `"id"`). It returns a new array with the values from the original array that correspond to the specified property.

**Special JS Feature/ Syntax**

There is no special JavaScript feature or syntax used in this benchmark. Both options use standard JavaScript functions and methods.

Related benchmarks:

Underscore pluck vs map 5 (version: 0)

Comparing performance of: Underscore vs Native

Created: 4 years ago by: Guest

Jump to the latest result

Underscore

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):