Benchmark: Benchmarking Lodash get vs babel optional chaining and babel nullish-coalescing operator - ver1

HTML Preparation code:

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

Script Preparation code:

// Example consider object
var obj = {
    a: {
        b: {
            c: 'hello'
        }
    }
};

Tests:

Lodash test
const value = _.get(obj,'a.b.c','hello');
babel optional chaining and babel nullish-coalescing operator
const value = obj.a?.b?.c ?? 'hello'

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash test
babel optional chaining and babel nullish-coalescing operator

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Windows

View result in a separate tab

Test name	Executions per second
Lodash test	2364772.5 Ops/sec
babel optional chaining and babel nullish-coalescing operator	13856675.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and explain what's being tested.

**Benchmark Definition:**

The benchmark is comparing two approaches to access a nested property in an object:

1. Using Lodash's `get` method (`Lodash test`)
2. Using Babel's optional chaining operator (`babel optional chaining`) and nullish coalescing operator (`babel nullish-coalescing`)

**Options being compared:**

* Lodash's `get` method
* Babel's optional chaining operator (`?.`)
* Babel's nullish coalescing operator (`??`)

**Pros and Cons of each approach:**

1. **Lodash's `get` method:**
	* Pros:
		+ Well-established and widely used library.
		+ Provides a clear and explicit way to access nested properties.
	* Cons:
		+ Adds an external dependency (Lodash).
		+ May have performance overhead due to the additional function call.
2. **Babel's optional chaining operator (`?.`):**
	* Pros:
		+ Built-in in modern JavaScript engines, eliminating the need for an external library.
		+ Provides a concise and readable way to access nested properties.
		+ Optimized for performance by using a single token instead of multiple function calls.
	* Cons:
		+ May not be supported in older JavaScript engines or environments that don't use Babel transpilation.
3. **Babel's nullish coalescing operator (`??`):**
	* Pros:
		+ Provides an additional way to handle missing values, which can be useful in certain scenarios.
	* Cons:
		+ Adds another operator to the syntax, potentially increasing cognitive load.

**Library used:**

In the benchmark definition, Lodash is used as a library. Lodash provides a wide range of utility functions for tasks like array manipulation, string processing, and object manipulation. In this case, the `get` method is being used to access the nested property.

**Special JavaScript feature or syntax:**

The benchmark makes use of two special features:

1. **Optional chaining operator (`?.`)**: Introduced in ECMAScript 2020 (ES2020), this operator allows you to access nested properties without throwing an error if any intermediate property is missing.
2. **Nullish coalescing operator (`??`)**: Introduced in ECMAScript 2020 (ES2020) as well, this operator provides a concise way to handle missing values by returning the first operand if it's not null or undefined, and the second operand otherwise.

**Other alternatives:**

If you prefer not to use Lodash or Babel, you can also access nested properties using dot notation (`obj.a.b.c`) or bracket notation (`obj['a']['b']['c']`). However, these approaches may be less readable and more prone to errors than using optional chaining or nullish coalescing operators.

In summary, the benchmark is comparing three approaches to access a nested property in an object: Lodash's `get` method, Babel's optional chaining operator, and Babel's nullish coalescing operator. The choice of approach depends on your specific use case, personal preference, and requirements for performance, readability, and maintainability.

Related benchmarks:

Benchmarking Lodash get vs babel optional chaining and babel nullish-coalescing operator - ver1 (version: 2)

Benchmarking Lodash get vs babel optional chaining and babel nullish-coalescing operator

Comparing performance of: Lodash test vs babel optional chaining and babel nullish-coalescing operator

Created: 3 years ago by: Registered User

Jump to the latest result

Lodash test

babel optional chaining and babel nullish-coalescing operator

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):