Benchmark: Lodash.get vs Optional chaining 1234

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var person = {name: 'Frederick', lastName: 'Corcino Alejo', address: { street: '28' }};

Tests:

Lodash get
_.get(person, 'address.street');
Native
person?.address?.street

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash get
Native

Fastest: N/A

Slowest: N/A

Latest run results:

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

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

**What is being tested?**

The provided JSON represents a JavaScript microbenchmark that compares two approaches for accessing nested properties of an object: `Lodash.get` and optional chaining (`?.`).

**Options compared:**

1. **Lodash.get**: A utility function from the Lodash library (version 4.16.0) that allows you to access nested properties of an object using a dot notation. For example, `_.get(person, 'address.street')`.
2. **Optional Chaining (`?.`)**: A new syntax introduced in ECMAScript 2020 that allows you to access nested properties of an object without explicitly checking if the property exists or not. In this case, `person?.address?.street`.

**Pros and Cons of each approach:**

* **Lodash.get**:
	+ Pros:
		- More explicit and predictable way of accessing nested properties.
		- Allows for better error handling and debugging.
	+ Cons:
		- Adds overhead due to the function call and lookup in the Lodash library.
		- May be slower than optional chaining for simple cases.
* **Optional Chaining (`?.`)**:
	+ Pros:
		- Faster and more efficient, as it avoids the function call and lookup overhead.
		- More concise and readable way of accessing nested properties.
	+ Cons:
		- Less explicit and may lead to errors if not used correctly.

**Library:**

* **Lodash**: A popular JavaScript utility library that provides a wide range of functions for tasks like string manipulation, array and object manipulation, and more. In this case, the `get` function is used to access nested properties of an object.

**Special JS feature or syntax:**

* **Optional Chaining (`?.`)**: This is a new syntax introduced in ECMAScript 2020 that allows you to access nested properties of an object without explicitly checking if the property exists or not. It's denoted by three dots (`?`) between the object and the property.

**Other alternatives:**

* **Brackets (`[]`)**: Another way to access nested properties of an object, where the array is used as a key. For example, `person['address.street']`.
* **Infix notation**: Some people use infix notation (e.g., `(person.address).street`) to access nested properties.

Overall, the benchmark compares two approaches for accessing nested properties of an object: Lodash's `get` function and optional chaining (`?.`). The results suggest that optional chaining is faster and more efficient than Lodash's `get` function, but may be less explicit and prone to errors if not used correctly.

Related benchmarks:

Lodash.get vs Optional chaining 1234 (version: 0)

Comparing performance of: Lodash get vs Native

Created: 2 years ago by: Guest

Jump to the latest result

Lodash get

Native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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