Benchmark: Dot property notation VS Lodash.get

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>

Script Preparation code:

var person = { name: 'Foo', lastName: 'Bar' };

Tests:

Dot notation property accessor
person.name
Dot property notation accessor with default value
person.name || 'Baz'
Lodash.get method
_.get(person, 'name');
Lodash.get method with default
_.get(person, 'name', 'Baz');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Dot notation property accessor
Dot property notation accessor with default value
Lodash.get method
Lodash.get method with default

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser/OS: Chrome 109 on Windows

View result in a separate tab

Test name	Executions per second
Dot notation property accessor	9119826.0 Ops/sec
Dot property notation accessor with default value	9211372.0 Ops/sec
Lodash.get method	2726645.8 Ops/sec
Lodash.get method with default	2728924.2 Ops/sec

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmarking test case hosted on MeasureThat.net. The goal of this benchmark is to compare the performance of different approaches to access an object property.

**Test Cases**

There are four test cases:

1. **Dot notation property accessor**: Accesses the `name` property using dot notation (e.g., `person.name`).
2. **Dot property notation accessor with default value**: Accesses the `name` property using dot notation and provides a default value if it's not present (e.g., `person.name || 'Baz'`).
3. **Lodash.get method**: Uses the Lodash library to access the `name` property using the `_.get()` function.
4. **Lodash.get method with default**: Similar to the previous test case, but provides a default value using the `_.get()` function.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides various functions for tasks such as string manipulation, array manipulation, and object manipulation. The `_.get()` function is specifically designed to access nested properties of an object in a safe and efficient manner.

**Special JS Feature/Syntax: None**

None of the test cases rely on any special JavaScript features or syntax beyond standard ES6 syntax.

**Options Compared**

The benchmark compares two approaches for accessing object properties:

1. Dot notation (e.g., `person.name`)
2. Lodash's `_.get()` function (e.g., `_.get(person, 'name')`)

**Pros and Cons of Each Approach**

* **Dot notation:**
	+ Pros:
		- Simple and concise syntax.
		- Easy to read and understand.
	+ Cons:
		- Can be brittle if the property name changes or is not present.
		- May lead to errors if the object has a different structure than expected.
* **Lodash's _.get() function:**
	+ Pros:
		- Provides a safe and efficient way to access nested properties.
		- Handles missing or non-existent properties by providing a default value.
	+ Cons:
		- Requires the Lodash library, which may add unnecessary overhead.
		- May have performance implications due to the additional function call.

**Other Alternatives**

If you want to explore alternative approaches, here are some options:

* Using bracket notation (e.g., `person['name']`) instead of dot notation.
* Implementing a custom function for accessing nested properties using recursion or iteration.
* Using other libraries like Moment.js for handling dates or console.log for logging purposes.

Keep in mind that each approach has its pros and cons, and the best choice depends on your specific use case and performance requirements.

Related benchmarks:

Dot property notation VS Lodash.get (version: 1)

Compares different approaches to access a object property

Comparing performance of: Dot notation property accessor vs Dot property notation accessor with default value vs Lodash.get method vs Lodash.get method with default

Created: 6 years ago by: Registered User

Jump to the latest result

Dot notation property accessor

Dot property notation accessor with default value

Lodash.get method

Lodash.get method with default

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):