Benchmark: Access to Proxy vs Object (version: 4)

Script Preparation code:

object = { value: 'data' };
proxy = new Proxy(object, {})
proxyWithHandler = new Proxy(object, {
	get(target, prop, receiver) {
    	return Reflect.get(target, prop, receiver)
    }
})

Tests:

Object access
object.value;
Proxy access
proxy.value
Proxy with get handler access
proxyWithHandler.value

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object access
Proxy access
Proxy with get handler access

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmarking test case on MeasureThat.net, which compares the performance of accessing an object using three different methods:

1. **Object access**: Directly accessing the `value` property of the `object`.
2. **Proxy access**: Accessing the `value` property through a proxy object created using the `Proxy` constructor.
3. **Proxy with get handler access**: Accessing the `value` property through a proxy object created using the `Proxy` constructor, but with a custom getter handler.

**Options Comparison**

The benchmark compares the performance of these three methods because:

* In some situations, using a proxy object can be more efficient than direct object access. This is especially true when working with large datasets or complex objects.
* Proxies provide a way to control how properties are accessed and computed, which can be useful in certain scenarios.

**Pros and Cons**

Here's a brief overview of the pros and cons of each approach:

1. **Object Access**:
	* Pros: Simple and intuitive; no additional overhead.
	* Cons: May incur performance penalties for large or complex objects.
2. **Proxy Access**:
	* Pros: Can provide better performance for certain use cases, especially when dealing with large datasets.
	* Cons: Requires creating a proxy object, which can introduce additional overhead.
3. **Proxy with Get Handler Access**:
	* Pros: Allows customizing the behavior of property access, which can be useful in specific scenarios.
	* Cons: Introduces additional complexity and potential performance overhead due to the custom getter handler.

**Library and Purpose**

In this benchmark, the `Reflect` library is used implicitly through the `Reflect.get()` function called within the proxy's getter handler. `Reflect` provides a set of functions that allow you to access and manipulate objects in a way that is not possible with traditional JavaScript methods.

**Special JS Feature or Syntax**

This benchmark does not explicitly use any special JavaScript features or syntax beyond what is standard in modern JavaScript (ECMAScript 2022). However, it relies on the `Proxy` constructor and its getter handler feature, which was introduced in ECMAScript 2015.

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/117.0.0.0 Safari/537.36

Browser/OS: Chrome 117 on Windows

View result in a separate tab

Test name	Executions per second
Object access	9983295.0 Ops/sec
Proxy access	9399025.0 Ops/sec
Proxy with get handler access	4178255.0 Ops/sec

Related benchmarks:

Access to Proxy vs Object (version: 4) (version: 0)

Comparing performance of: Object access vs Proxy access vs Proxy with get handler access

Comparing performance of: Object access vs Proxy access vs Proxy with get handler access

Created: one year ago by: Guest

Jump to the latest result

Object access

Proxy access

Proxy with get handler access

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):