Benchmark: Loadash isEmpty vs Object.keys length

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var obj1 = {}
var obj2 = {'foo': 'bar'}

Tests:

Native
Object.keys(obj1).length === 0
Lodash.js filter
_.isEmpty(obj2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash.js filter

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark test.

**What is being tested?**

The provided JSON represents a JavaScript microbenchmark that compares two approaches to check if an object is empty:

1. **Native**: This approach uses the `Object.keys()` method to get an array of the object's own enumerable properties, and then checks if the length of this array is 0.
2. **Lodash.js filter**: This approach uses the `_.isEmpty()` function from the Lodash library to check if the input object is empty.

**Options compared**

The two options being compared are:

1. Native implementation
2. Lodash.js implementation

**Pros and Cons of each approach:**

* **Native implementation**:
	+ Pros:
		- No external dependency on a library like Lodash.
		- May be faster since it doesn't involve function call overhead.
	+ Cons:
		- Requires manual handling of property names, which can lead to errors if not implemented correctly.
		- May have performance issues due to the `Object.keys()` method's behavior in older browsers.
* **Lodash.js implementation**:
	+ Pros:
		- Convenient and easy to implement, as it provides a standardized way to check for emptiness.
		- Less error-prone since it abstracts away the details of property iteration.
	+ Cons:
		- Requires an external dependency on the Lodash library.
		- May be slower due to the function call overhead.

**Other considerations:**

* The test uses a minimal setup, with two simple objects: `obj1` (an empty object) and `obj2` (an object with a single property).
* The test doesn't account for edge cases like null or undefined values.
* The Lodash implementation is used from the CDN, which may have performance implications due to network latency.

**Library usage**

The Lodash library is used in the second test case. Specifically, it's used to implement the `_.isEmpty()` function, which checks if an object is empty by verifying that it has no own enumerable properties and no prototype chains. The Lodash library provides a convenient way to perform this check without having to write custom implementation.

**Special JS feature or syntax**

None are mentioned in this test case.

Related benchmarks:

Loadash isEmpty vs Object.keys length (version: 0)

Comparing performance of: Native vs Lodash.js filter

Created: 3 years ago by: Guest

Jump to the latest result

Native

Lodash.js filter

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):