Benchmark: _.join vs array.join

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var elements = ["cat", "dog", "bat"]

Tests:

_.join
_.join(elements, ', ');
array.join
elements.join(', ');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.join
array.join

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Windows

View result in a separate tab

Test name	Executions per second
_.join	19397870.0 Ops/sec
array.join	19516206.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark.

**Benchmark Definition**

The benchmark is comparing the performance of two approaches: `_.join` from the Lodash library and the built-in `array.join()` method.

**Options Compared**

Two options are compared:

1. `_join`: This is a function from the Lodash library that joins an array into a string.
2. `array.join()`: This is a built-in JavaScript method that joins the elements of an array into a string.

**Pros and Cons**

Here are some pros and cons of each approach:

* `_join` (Lodash):
	+ Pros:
		- More flexible, as it can handle different types of separators and transformers.
		- Can be used with other Lodash functions to create more complex pipelines.
	+ Cons:
		- Requires the Lodash library to be included in the project.
		- May have a slight performance overhead due to the additional function call.
* `array.join()`: (Built-in JavaScript)
	+ Pros:
		- Fast and lightweight, as it's a built-in method.
		- Does not require any external libraries.
	+ Cons:
		- Less flexible than `_join`, as it only supports a specific separator type.
		- May not work well with arrays of different types or structures.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and more. The `_.join()` function is just one example of the many useful utilities provided by Lodash.

**Special JS Feature/Syntax**

There doesn't appear to be any special JavaScript features or syntax used in this benchmark. Both `_join` and `array.join()` rely on standard JavaScript concepts like arrays and strings.

**Other Alternatives**

If you're looking for alternative approaches, here are a few options:

1. Use a custom loop: Instead of using either `_join` or `array.join()`, you could write your own loop to join the elements of an array into a string.
2. Use a different library: Depending on your specific needs, there may be other libraries that offer more efficient or flexible string joining functionality (e.g., Moment.js for date-based joining).
3. Implement a custom join function: If you're using a specific type of separator or transformer, you could implement a custom join function to meet those requirements.

Keep in mind that these alternatives will likely have different performance characteristics and may require more effort to implement correctly.

Related benchmarks:

_.join vs array.join (version: 0)

Comparing performance of: _.join vs array.join

Created: 5 years ago by: Guest

Jump to the latest result

_.join

array.join

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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