Benchmark: Lodash pick vs object descturct

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

Lodash
const obj = { a:1, b:1, c:1, d:1, e:1, f:1, g:1, h:1, i:1, } const n = _.pick(obj, ['a','d','i']);
Object desctruct
const obj = { a:1, b:1, c:1, d:1, e:1, f:1, g:1, h:1, i:1, } const {a, d, i} = obj; const n = {a, d, i};

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash
Object desctruct

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.

**Benchmark Definition:**

The benchmark is designed to compare two approaches for extracting specific properties from an object:

1. Using the `_.pick()` method from Lodash (a popular utility library).
2. Using object destructuring syntax (`const { a, d, i } = obj; const n = { a, d, i };`).

**Options Compared:**

The benchmark is comparing two options:

1. **Lodash `.pick()`**: This approach uses the `_.pick()` method to extract specific properties from the original object. The `_.pick()` function takes an object and an array of property names as arguments and returns a new object containing only the specified properties.
2. **Object Destructuring**: This approach uses object destructuring syntax to extract specific properties from the original object. Object destructuring allows you to assign properties of an object to variables, which can be used in a concise way to create a new object with only the desired properties.

**Pros and Cons:**

### Lodash `.pick()`:

Pros:

* Easy to use and understand.
* Works well for most cases, especially when dealing with large objects.
* Lodash is a well-maintained library with a wide range of utility functions.

Cons:

* Requires including an additional library (Lodash) in your project.
* Can be slower than object destructuring due to the overhead of function calls and object creation.

### Object Destructuring:

Pros:

* Fast and efficient, as it only creates references to the original properties.
* Does not require any additional libraries or overhead.
* Can be more readable for simple cases.

Cons:

* Requires a good understanding of JavaScript syntax and object destructuring.
* May not work well with complex objects or large arrays.

**Library:**

Lodash is a popular utility library for JavaScript that provides a wide range of functions for tasks such as array manipulation, object transformation, and functional programming. In this benchmark, Lodash is used to provide the `_.pick()` function, which is then compared to object destructuring syntax.

**Special JS Feature/Syntax:**

None mentioned in this benchmark, but it's worth noting that some JavaScript features, like classes, async/await, or ES6 modules, might affect the performance of these approaches.

**Other Alternatives:**

For objects with a small number of properties, you could use the `Object.assign()` method to create a new object with only the desired properties:
```javascript
const n = Object.assign({}, obj, { a: 1, d: 1, i: 1 });
```
This approach is similar to Lodash `.pick()`, but it uses a different API. However, keep in mind that `Object.assign()` has its own overhead and might not be as efficient as object destructuring for large objects.

In summary, the benchmark provides an excellent opportunity to compare two approaches for extracting properties from an object: Lodash `.pick()` versus object destructuring syntax. Understanding the pros and cons of each approach will help you make informed decisions about which one to use in your own projects.

Related benchmarks:

Lodash pick vs object descturct (version: 0)

Comparing performance of: Lodash vs Object desctruct

Created: 6 years ago by: Guest

Jump to the latest result

Lodash

Object desctruct

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):