Benchmark: Class Accessor vs Method

Script Preparation code:

class TestClass {
  
  	property = Math.random();

    get property() {
        return this.property;
    }

    getProperty() {
        return this.property;
    }
};

var prototypeAccessor = new TestClass();

Tests:

Read from method
var value = prototypeAccessor.getProperty();
Read from accecssor
var value = prototypeAccessor.property;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Read from method
Read from accecssor

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/605.1.15 (KHTML, like Gecko) Version/16.1 Safari/605.1.15

Browser/OS: Safari 16 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Read from method	28829506.0 Ops/sec
Read from accecssor	28655160.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark consists of two test cases that compare the performance of accessing properties using methods (functions) versus property accessors. The script preparation code defines a class `TestClass` with a property named "property" and its getter method `getProperty()` and accessor `property`.

**Script Preparation Code**
```javascript
class TestClass {
    property = Math.random();

get property() {
        return this.property;
    }

getProperty() {
        return this.property;
    }
};

var prototypeAccessor = new TestClass();
```
The script creates an instance of the `TestClass` class and assigns a random value to the "property" property. It also defines two getter methods: `getProperty()` and `getProperty()` (not shown in the provided code). The latter is not used in any test case, so we can ignore it for this explanation.

**Html Preparation Code**

There is no HTML preparation code provided, which means that this benchmark does not use any HTML-specific features or syntax.

**Test Cases**

The two test cases are:

1. **Read from method**: `var value = prototypeAccessor.getProperty();`
2. **Read from accessor**: `var value = prototypeAccessor.property;`

These test cases compare the performance of accessing the "property" property using its getter method (`getProperty()`) versus directly accessing it as a property.

**Options Compared**

The benchmark compares two options:

* Using a getter method (`getProperty()`) to access a property.
* Directly accessing a property (using `property`).

**Pros and Cons**

**Getter Method Approach:**

Pros:

* Can provide additional functionality or validation for the accessed property, if desired.
* Can be used to implement lazy loading or other optimization techniques.

Cons:

* Typically slower than direct property access due to function invocation overhead.
* May incur additional CPU cycles due to the overhead of setting up and tearing down the getter method.

**Direct Property Access Approach:**

Pros:

* Generally faster than using a getter method, as it avoids the function invocation overhead.
* Can be optimized for better performance by avoiding unnecessary computations or checks.

Cons:

* Does not provide any additional functionality or validation for the accessed property.
* May expose implementation details of the class, if not properly encapsulated.

**Other Considerations**

In general, when deciding between using a getter method or direct property access, consider the following factors:

* Performance: If speed is critical, direct property access may be preferred. However, if additional functionality or validation is required, the overhead of a getter method may be acceptable.
* Code Readability and Maintainability: Getter methods can provide a clear indication of the purpose of a property, making code more readable and maintainable.

**Other Alternatives**

For this benchmark, there are no alternative approaches that are typically considered. However, other benchmarks may compare different optimization techniques or coding styles (e.g., using `this` versus `super` in inheritance).

Keep in mind that the choice between getter methods and direct property access ultimately depends on the specific requirements of your project and personal coding style preferences.

Related benchmarks:

Class Accessor vs Method (version: 0)

Comparing performance of: Read from method vs Read from accecssor

Created: one year ago by: Guest

Jump to the latest result

Read from method

Read from accecssor

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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