Benchmark: Lodash omit vs Native delete vs Native destruct - Mantz

HTML Preparation code:

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

Script Preparation code:

data = { abf:'asd', message:'koko', more: 'some more data' }

Tests:

Native delete
const meta = Object.assign({}, data); delete meta.message; return { message: data.message, meta }
Lodash omit and pick
return { message: _.pick(data, 'message'), meta: _.omit(data, 'message') }
Lodash omit
return { message: data.message, meta: _.omit(data, 'message') }
Native destruct
const { message, ...meta} = data; return { message, meta }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native delete
Lodash omit and pick
Lodash omit
Native destruct

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided benchmark, "Lodash omit vs Native delete vs Native destruct - Mantz", tests three different approaches to remove a property from an object: using Lodash's `omit` function, native JavaScript's `delete` operator, and native JavaScript's destructuring syntax.

**Approaches Compared**

1. **Lodash's `omit` function**: This approach uses the Lodash library to create a new object that excludes the specified property (`'message'` in this case). The `omit` function returns a new object with the desired properties removed.
2. **Native JavaScript's `delete` operator**: This approach directly deletes the specified property from the original object, leaving the other properties intact.
3. **Native JavaScript's destructuring syntax**: This approach uses destructuring assignment to create two separate objects: one containing the desired property (`message`) and another containing all the remaining properties (assigned to a variable named `meta`).

**Pros and Cons of Each Approach**

1. **Lodash's `omit` function**:
	* Pros: Easy to use, efficient, and well-tested.
	* Cons: Requires an additional library dependency, which may add overhead.
2. **Native JavaScript's `delete` operator**:
	* Pros: Lightweight, doesn't require any libraries or dependencies.
	* Cons: May not be as readable or maintainable as other approaches, especially for complex object structures.
3. **Native JavaScript's destructuring syntax**:
	* Pros: Very lightweight and efficient, easy to read and write.
	* Cons: Requires modern JavaScript features (ECMAScript 2015+), which might not be supported in older browsers.

**Other Considerations**

* The benchmark only tests the removal of a single property (`'message'`), but the results can provide insights into the performance differences between these approaches for more complex object structures.
* Lodash's `omit` function is generally considered faster and more efficient than native JavaScript's `delete` operator, especially for larger objects.

**Library Used**

The Lodash library is used in this benchmark. Lodash provides a set of useful functions for manipulating objects, arrays, and other data structures, making it a popular choice among developers.

**Special JS Features or Syntax**

No special JavaScript features or syntax are used beyond what's required by the benchmark definition. However, it's worth noting that some versions of older browsers might not support modern JavaScript features like destructuring assignment.

**Alternative Approaches**

Other alternatives to these approaches could include:

* Using a custom function to create a new object without the specified property.
* Using an array or other data structure to represent the object and then removing the desired property.
* Utilizing other library functions, such as `Object.assign` with an empty object, to achieve similar results.

Keep in mind that these alternatives might introduce additional overhead or complexity, depending on the specific requirements of your project.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser/OS: Chrome 87 on Mac OS X 10.14.6

View result in a separate tab

Test name	Executions per second
Native delete	1310887.1 Ops/sec
Lodash omit and pick	488747.7 Ops/sec
Lodash omit	655586.1 Ops/sec
Native destruct	1751268.4 Ops/sec

Related benchmarks:

Lodash omit vs Native delete vs Native destruct - Mantz (version: 0)

Comparing performance of: Native delete vs Lodash omit and pick vs Lodash omit vs Native destruct

Created: 4 years ago by: Guest

Jump to the latest result

Native delete

Lodash omit and pick

Lodash omit

Native destruct

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 24 days ago):