Benchmark: field vs property23

Script Preparation code:

class MyClass {
    constructor() {
        this.field = 1;
    }

    set field_value(val) {
        this.field = val;
    }
    get field_value() {
        return this.field;
    }

}

var theInstance = new MyClass();

Tests:

lodash
theInstance.field_value = 1;
native
theInstance.field = 1;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
native

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Windows

View result in a separate tab

Test name	Executions per second
lodash	26001262.0 Ops/sec
native	25919864.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark definition and test cases to explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The provided JSON defines two benchmark cases:

1. `field vs property23`:
	* Description: The benchmark compares accessing a field (`this.field`) versus using a property accessor (`this.field_value`) in JavaScript.
	* Script Preparation Code: A simple class `MyClass` with a constructor, which initializes the `field` property and provides getter and setter methods for it. An instance of this class is created and assigned to `theInstance`.
2. Two test cases:
	* `lodash`: This benchmark uses the Lodash library to access the `field_value` property.
	* `native`: This benchmark accesses the `field_value` property using the dot notation, without any additional library.

**Options Compared**

The two options being compared are:

1. **Lodash**: Using a library like Lodash to access the `field_value` property.
2. **Native Accessor**: Accessing the `field_value` property directly using the dot notation (e.g., `theInstance.field_value`).

**Pros and Cons of Each Approach**

**Lodash:**

Pros:

* Provides a convenient and consistent way to access properties across different languages and platforms.
* Can be faster due to optimized implementations.

Cons:

* Adds an additional dependency (the Lodash library) to the benchmark.
* May introduce overhead due to function calls and memory allocation.

**Native Accessor:**

Pros:

* Fast and lightweight, as it only requires accessing a property using dot notation.
* No dependencies or overhead beyond what's already present in the JavaScript engine.

Cons:

* May vary in performance across different browsers and platforms, depending on how they implement property access.
* Less consistent behavior across languages and platforms compared to Lodash.

**Library Usage**

The `lodash` library is used in one of the test cases. `Lodash` (a popular utility library for JavaScript) provides a way to access properties using a standardized, functional interface (`get()` method). This can lead to more predictable behavior and improved performance by leveraging optimized implementations.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntax mentioned in the provided code. The focus is on comparing two different approaches to accessing properties: using Lodash versus native accessor.

**Other Alternatives**

If you wanted to add another test case, some alternative options could include:

* **Using an alternative library**: Instead of Lodash, you might compare a different utility library like `underscore` or `moments`.
* **Adding more accessors**: You could test using other types of accessors, such as bracket notation (`theInstance['field_value']`) or `in` operator (`'field_value' in theInstance`).
* **Benchmarks for property creation**: You might add benchmarks to compare different approaches to creating properties on an object (e.g., using the dot notation versus using the bracket notation).

Related benchmarks:

field vs property23 (version: 0)

field vs property

Comparing performance of: lodash vs native

Created: 2 years ago by: Guest

Jump to the latest result

lodash

native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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