Benchmark: underscorejs pick vs object descturct

HTML Preparation code:

<script src='https://underscorejs.org/underscore-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 and Options**

The provided JSON represents a benchmarking test created on MeasureThat.net. The test has two individual test cases:

1. **Test Case 1: "underscorejs pick vs object destruct"**
	* Benchmark Definition:
		+ Using Lodash's `pick` function to extract specific properties from an object (`const n = _.pick(obj, ['a','d','i']);`)
		+ Creating a new object with only the desired properties using destructuring assignment (`const obj = {\r\n  a:1,\r\n  b:1,\r\n  c:1,\r\n  d:1,\r\n  e:1,\r\n  f:1,\r\n  g:1,\r\n  h:1,\r\n  i:1,\r\n}\r\n\r\nconst n = {a, d, i};`)
	* Options being compared:
		+ Lodash's `pick` function
		+ Object destructuring assignment (using spread syntax)
2. **Test Case 2: "Lodash"**
	* Benchmark Definition:
		+ Using Lodash's `pick` function to extract specific properties from an object (`const n = _.pick(obj, ['a','d','i']);`)
	* Options being compared:
		+ Lodash's `pick` function ( identical test case as above)

**Pros and Cons of Each Approach**

1. **Lodash's `pick` function:**
	* Pros:
		+ Easy to use and concise syntax
		+ Well-tested and widely adopted library
	* Cons:
		+ Additional dependency required (Lodash)
		+ Might introduce overhead due to the library's functionality
2. **Object destructuring assignment:**
	* Pros:
		+ Lightweight and efficient approach
		+ No additional dependencies required
		+ Easy to read and understand syntax
	* Cons:
		+ Requires explicit knowledge of spread syntax
		+ Might lead to slower performance due to object creation

**Library: Lodash**

Lodash is a popular JavaScript library that provides a wide range of utility functions, including `pick`. It's designed to be small and efficient while still offering a lot of functionality. The `pick` function allows you to extract specific properties from an object, making it a convenient option for many use cases.

**Special JS Feature: Spread Syntax**

The spread syntax (`{a, d, i}`) is a JavaScript feature introduced in ECMAScript 2018 (ES2018). It allows you to create new objects by spreading the properties of an existing object. This approach is concise and easy to read but might not be immediately familiar to all developers.

**Other Alternatives**

If you don't want to use Lodash or object destructuring assignment, other alternatives for extracting specific properties from an object include:

1. **Object.keys() + Array.prototype.filter()**: Use `Object.keys()` to get an array of property names and then filter it using `Array.prototype.filter()`.
2. **For...in loop**: Iterate over the object's property names using a `for...in` loop and add the desired properties to a new object.
3. **Modern JavaScript methods (e.g., `Object.fromEntries()`, `Object.assign()`)**: These methods can be used to create new objects from existing ones, but might not offer the same level of conciseness as Lodash's `pick` function or object destructuring assignment.

Keep in mind that each approach has its trade-offs, and the best solution depends on your specific use case and performance requirements.

Related benchmarks:

underscorejs pick vs object descturct (version: 0)

Comparing performance of: Lodash vs Object desctruct

Created: 3 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):