Benchmark: Lodash.get with an instance default

HTML Preparation code:

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

Script Preparation code:

var obj = {
   test: 123
}

Tests:

With new instance in get default
_.get(obj, 'test', new Set()); _.get(obj, 'missing', new Set());
Boolean logic with lodash
_.get(obj, 'test', false) || new Set(); _.get(obj, 'missing', false) || new Set();
Boolean logic only
!!obj.test || new Set(); !!obj.missing || new Set();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
With new instance in get default
Boolean logic with lodash
Boolean logic only

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_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Browser/OS: Chrome 78 on Mac OS X 10.14.6

View result in a separate tab

Test name	Executions per second
With new instance in get default	1203198.6 Ops/sec
Boolean logic with lodash	1439550.2 Ops/sec
Boolean logic only	4052933.0 Ops/sec

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

The provided JSON represents a JavaScript benchmark test case on the MeasureThat.net website. The goal is to compare the performance of different approaches when working with the Lodash library, specifically in the context of data retrieval using the `_.get()` method.

**Benchmark Definitions and Options**

There are three benchmark definitions:

1. **`_.get(obj, 'test', new Set());\r\n_.get(obj, 'missing', new Set());`**: This test case compares the performance of using a new instance as the default value for the second argument in `_.get()`. The first call uses `new Set()` as the default value, while the second call uses an empty `Set`.
2. **`_.get(obj, 'test', false) || new Set();\r\n_.get(obj, 'missing', false) || new Set();`**: This test case compares the performance of using a boolean value (`false`) as the default value for the second argument in `_.get()`. The first call uses `false` as the default value, while the second call also uses `false`.
3. **`!!obj.test || new Set();\r\n!!obj.missing || new Set();`**: This test case compares the performance of using a boolean expression (`!!obj.test`) to retrieve the value from the object.

**Pros and Cons of Each Approach**

1. **Using a new instance as the default value (`new Set()`)**:
	* Pros: Provides a clear and explicit way to specify a default value.
	* Cons: May incur additional overhead due to the creation of a new instance.
2. **Using a boolean value as the default value (`false`)**:
	* Pros: Lightweight and efficient, as it doesn't require creating an instance.
	* Cons: Requires careful consideration to ensure that `false` is the correct value for the use case.
3. **Using a boolean expression (`!!obj.test`)**:
	* Pros: Can be more concise and expressive than specifying a default value or creating an instance.
	* Cons: May be less intuitive or explicit than other approaches, making it harder to understand the intent.

**Lodash Library**

The Lodash library is a popular JavaScript utility library that provides a wide range of functional programming helpers. In this benchmark, `_.get()` is used to retrieve values from objects in a flexible and expressive way.

**Special JS Feature/Syntax**

None of the provided benchmark definitions use any special JavaScript features or syntax that would require additional explanation.

**Other Alternatives**

Other alternatives to compare in this benchmark could include:

* Using other libraries or frameworks that provide similar functionality (e.g., `get()` from the `lodash-es` package)
* Implementing custom logic for data retrieval using simple conditional statements
* Comparing performance with different data structures or object layouts

These alternative approaches would require modifying the existing benchmark definitions to accommodate the changes.

Related benchmarks:

Lodash.get with an instance default (version: 0)

Comparing performance of: With new instance in get default vs Boolean logic with lodash vs Boolean logic only

Created: 4 years ago by: Registered User

Jump to the latest result

With new instance in get default

Boolean logic with lodash

Boolean logic only

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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