Benchmark: Lodash.get vs Property dot notation for complex data

HTML Preparation code:

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

Script Preparation code:

var obj = {data: {people: [{age: 38}]}};

Tests:

Lodash get
_.get(obj, 'data.people.0.age');
Native
obj.data.people[0].age

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:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser/OS: Chrome 134 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash get	18406494.0 Ops/sec
Native	237887856.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of the provided JSON benchmark.

**Benchmark Purpose**

The provided JSON represents a JavaScript microbenchmark that compares the performance of two approaches: using Lodash's `_.get()` method and native property access (dot notation) on a complex data structure. The goal is to determine which approach is faster.

**Options Compared**

There are only two options compared in this benchmark:

1. **Lodash `_.get()`**: This is a utility function from the popular Lodash library, which provides a way to safely navigate and access nested properties of objects. In this case, it's used to access the value at a specific path within an object.
2. **Native property access (dot notation)**: This approach uses the dot notation (`obj.data.people[0].age`) to directly access the desired property in the object.

**Pros and Cons of Each Approach**

1. **Lodash `_.get()`**:
	* Pros:
		+ Provides a flexible way to navigate complex data structures.
		+ Handles null or undefined values safely.
		+ Can be useful when working with dynamic or unknown data structures.
	* Cons:
		+ Adds an extra layer of overhead due to the function call and its internal logic.
		+ May not be optimized for performance in all cases.
2. **Native property access (dot notation)**:
	* Pros:
		+ Optimized for performance, as it directly accesses the property without any additional overhead.
		+ Typically faster than using a utility function like Lodash's `_.get()`.
	* Cons:
		+ May not be suitable for complex data structures, where direct access can lead to errors or inconsistencies.

**Library and Purpose**

In this benchmark, the Lodash library is used. Lodash provides a set of functional programming helpers, including utility functions like `_.get()`, that make it easier to work with JavaScript objects and arrays. The purpose of using Lodash in this benchmark is to demonstrate its performance compared to native property access.

**Special JS Feature or Syntax**

There isn't any special JavaScript feature or syntax used in this benchmark beyond the dot notation for native property access and the use of Lodash's `_.get()` function.

**Other Alternatives**

If you were to implement a similar benchmark, other alternatives could include:

* Using other utility libraries like Underscore.js or Moment.js
* Implementing your own optimized solution for navigating complex data structures
* Comparing the performance of different JavaScript engines (e.g., V8, SpiderMonkey) or browsers

Overall, this benchmark provides a simple yet informative way to compare the performance of two approaches: using Lodash's `_.get()` function and native property access.

Related benchmarks:

Lodash.get vs Property dot notation for complex data (version: 0)

Comparing performance of: Lodash get vs Native

Created: 3 years ago by: Guest

Jump to the latest result

Lodash get

Native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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