Benchmark: _.get Benchmark Test

Script Preparation code:

var obj = {a: {b: {c: {d: 1}}}}

Tests:

Native
obj.a && obj.a.b && obj.a.b.c && obj.a.b.c.d
Lodash
_.get(obj, "a.b.c.d")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash

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 provided benchmark and explain what's being tested, compared, and their pros/cons.

**What is being tested?**

The benchmark compares two approaches to access nested properties in an object:

1. **Native Optional Chaining**: This is a feature introduced in ECMAScript 2020 (ES12) that allows you to access nested properties using the `?.` operator. For example: `obj.a && obj.a.b && obj.a.b.c && obj.a.b.c.d`.
2. **Lodash _.get() function**: This is a utility function from the Lodash library that performs a similar operation, but with a different syntax and implementation.

**Options compared**

The benchmark compares the performance of these two approaches:

* Native Optional Chaining
* Lodash _.get()

**Pros and Cons:**

1. **Native Optional Chaining**:
	* Pros:
		+ Efficient and lightweight.
		+ Supports all modern browsers that implement ES12.
		+ Easy to read and write, as it's a simple operator syntax.
	* Cons:
		+ Requires support for ES12, which might not be available in older browsers or environments.
2. **Lodash _.get() function**:
	* Pros:
		+ Widely supported across modern JavaScript platforms (including Node.js).
		+ Can handle complex nesting and iteration.
		+ Often used in production code due to its familiarity and reputation.
	* Cons:
		+ More verbose than the native operator syntax.
		+ Adds an additional dependency on Lodash.

**Library:**

In this benchmark, the Lodash library is being tested. _.get() is a utility function that takes an object and a path string as arguments, returning the value at the specified path in the object. Its purpose is to provide a flexible way to access nested properties without having to manually chain dot notation.

**Special JS feature or syntax:**

The benchmark uses ES12's Optional Chaining (`?.`) feature, which allows you to safely navigate nested objects and avoid null pointer exceptions.

**Other alternatives:**

If the _.get() function is not an option, other alternatives for accessing nested properties include:

* Dot notation (e.g., `obj.a.b.c.d`)
* Bracket notation (e.g., `obj['a']['b']['c']['d']`)
* Loops or recursion to iterate through the object's properties
* Using a custom implementation in a specific library or framework

Keep in mind that these alternatives might have different performance characteristics, readability, and maintainability trade-offs compared to the native Optional Chaining feature.

Related benchmarks:

_.get Benchmark Test (version: 0)

Compare native optional chaining versus _.get lodash

Comparing performance of: Native vs Lodash

Created: 8 years ago by: Guest

Jump to the latest result

Native

Lodash

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):