Benchmark: toPairs, entries

HTML Preparation code:

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

Tests:

entries
const objecT = { a: "A", b: "B", c: "C" } const arraY = _.entries(objecT);
toPairs
const objecT = { a: "A", b: "B", c: "C" } const arraY = _.toPairs(objecT);
Pure Javascript
const objecT = { a: "A", b: "B", c: "C" } const arraY = Object.entries(objecT);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
entries
toPairs
Pure Javascript

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.36

Browser/OS: Chrome 83 on Mac OS X 10.15.4

View result in a separate tab

Test name	Executions per second
entries	3308153.2 Ops/sec
toPairs	3503183.8 Ops/sec
Pure Javascript	4849924.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and explain what's being tested, compared, and considered.

**Benchmark Overview**

The test measures the performance of three approaches to convert an object into an array of key-value pairs:

1. `_.toPairs` (using Lodash library)
2. `Object.entries` (pure JavaScript)

**Lodash Library**

Lodash is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object transformation, and more. The `.toPairs` function in particular converts an object into an array of key-value pairs.

**Pure JavaScript Approach**

The pure JavaScript approach uses the `Object.entries()` method to convert an object into an array of key-value pairs.

**Comparison of Approaches**

Here's a brief comparison of the three approaches:

1. **_.toPairs (Lodash)**:
	* Pros: Typically faster and more efficient than pure JavaScript implementations, especially for large objects.
	* Cons: Requires including the Lodash library, which may add unnecessary overhead for some use cases.
2. **Object.entries (Pure JavaScript)**:
	* Pros: Fast, lightweight, and doesn't require any additional libraries.
	* Cons: May be slower than the Lodash approach for very large objects.

**Other Considerations**

When choosing between these approaches, consider the following:

* If you need to perform complex object transformations or manipulations, Lodash might be a better choice due to its comprehensive feature set.
* For simple key-value pair conversion, pure JavaScript might be sufficient and more efficient.

**Special JS Feature/Syntax (None)**

There are no special JavaScript features or syntax used in this benchmark that would require additional explanation.

**Other Alternatives**

If you're looking for alternative approaches to convert an object into an array of key-value pairs, consider:

1. `Object.keys()`: Returns an array of a given object's own enumerable property names.
2. `Array.prototype.map()` with `Object.keys()` and indexing: Converts an object into an array by mapping each property name to its corresponding value using the `Object.keys()` method.

Keep in mind that these alternatives might not be as efficient as the Lodash or pure JavaScript approaches, but they can be viable options for specific use cases.

Related benchmarks:

toPairs, entries (version: 0)

lodash

Comparing performance of: entries vs toPairs vs Pure Javascript

Created: 4 years ago by: Guest

Jump to the latest result

entries

toPairs

Pure Javascript

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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