Benchmark: Proxy getter vs object getter

Script Preparation code:

object = {
    model: 'data',
    get view() {
        return this.model + ' by getter'
    }
};
proxyWithReflection = new Proxy(object, {
    get(target, prop, receiver) {
        return Reflect.get(target, prop, receiver)
    }
})
proxyWithoutReflection = new Proxy(object, {
    get(target, prop, receiver) {
        return target[prop]
    }
})

Tests:

Object getter
object.view;
Proxy getter with Reflection
proxyWithReflection.view
Proxy getter without Reflection
proxyWithoutReflection

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object getter
Proxy getter with Reflection
Proxy getter without Reflection

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/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Object getter	12778564.0 Ops/sec
Proxy getter with Reflection	4216735.5 Ops/sec
Proxy getter without Reflection	14883470.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its options.

**Benchmark Definition**

The benchmark is comparing two approaches to retrieve a property value from an object: `object.getter` (without using reflection) and `proxyWithReflection.view` (using reflection). Additionally, it compares `proxyWithoutReflection`, which uses the proxy object without reflection.

**Options Compared**

1. **Object Getter (`object.getter`)**:
	* Pros: Simple and efficient way to access properties in objects.
	* Cons: May not be as performant or flexible as using reflection.
2. **Proxy Getter with Reflection (`proxyWithReflection.view`)**:
	* Pros: More flexible and performant than the object getter approach, especially when dealing with complex property names or objects.
	* Cons: Requires more overhead due to the use of reflection, which can impact performance.
3. **Proxy Getter without Reflection (`proxyWithoutReflection`)**:
	* Pros: Similar to the object getter approach but using the proxy object's built-in getter mechanism.
	* Cons: May not be as performant or flexible as using reflection.

**Libraries and Features**

* The `Reflect.get()` function is used in both `proxyWithReflection` and `proxyWithoutReflection`. It is a JavaScript built-in function that returns the value of a specified property on an object, if it exists.
* The `Proxy` object is also a JavaScript built-in object that allows you to create a proxy that intercepts property access, allowing you to implement custom getter logic.

**Other Considerations**

* In general, using reflection can be beneficial when dealing with complex or dynamic property names, but it may introduce performance overhead. The choice between reflection and the proxy object's built-in getter mechanism depends on the specific use case and requirements.
* The `proxyWithoutReflection` approach is similar to the object getter approach but uses the proxy object's built-in getter mechanism instead of `Reflect.get()`. This can provide a slight performance boost due to reduced overhead.

**Alternatives**

If you're looking for alternatives, here are some options:

1. **Using a property access library**: Instead of using the `Proxy` object or `Reflect.get()`, you could use a dedicated property access library like `lodash.get()` or `property-deep`.
2. **Using a virtual DOM library**: If you're building a web application with a virtual DOM, you might consider using a virtual DOM library like React or Vue.js, which provide built-in mechanisms for accessing and manipulating properties.
3. **Implementing custom getter logic**: Depending on your specific use case, you might be able to implement custom getter logic using JavaScript's `Object.defineProperty()` API or other techniques.

Keep in mind that these alternatives may not provide the same level of flexibility or performance as using reflection or the proxy object, but they can offer a more lightweight and efficient solution for certain scenarios.

Related benchmarks:

Proxy getter vs object getter (version: 0)

Comparing performance of: Object getter vs Proxy getter with Reflection vs Proxy getter without Reflection

Created: one year ago by: Guest

Jump to the latest result

Object getter

Proxy getter with Reflection

Proxy getter without Reflection

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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