Benchmark: Access to Proxy vs Object test

Script Preparation code:

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

Tests:

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

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/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Object access	14295031.0 Ops/sec
Proxy access	13900367.0 Ops/sec
Proxy with get handler access	12366722.0 Ops/sec
Getter	13572030.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

LLMs can make mistakes. Check important info.

**Overview**

The provided JSON represents a JavaScript microbenchmark test case on the MeasureThat.net website. The benchmark compares the performance of accessing an object's property through different methods: direct object access, proxy access, and proxy with getter handler access.

**Benchmark Comparison**

The test case measures the execution time of each method:

1. **Object Access**: Directly accessing the `object.value` property.
2. **Proxy Access**: Accessing the `proxy.value` property, which is a proxy object created from the original `object`.
3. **Proxy with Getter Handler Access**: Accessing the `proxyWithHandler.value` property, where a getter handler is defined to return a specific value.
4. **Getter**: Using an arrow function as a getter to access the `value` property.

**Pros and Cons of Each Approach**

1. **Object Access**:
	* Pros: Fastest, most straightforward approach.
	* Cons: May involve additional overhead for object creation and lookup.
2. **Proxy Access**:
	* Pros: Can be useful when you need to control access to an object's properties without modifying the original object.
	* Cons: Requires creating a proxy object, which can introduce additional overhead.
3. **Proxy with Getter Handler Access**:
	* Pros: Allows for fine-grained control over property access, enabling custom behavior without modifying the underlying object.
	* Cons: Introduces additional complexity and may incur performance overhead due to the getter handler lookup.

**Library Usage**

The benchmark uses the built-in `Proxy` constructor from JavaScript, which creates a proxy object that allows you to define custom traps for accessing its properties. In this case, no external libraries are required.

**Special JS Features or Syntax**

No special features or syntax are used in this benchmark. The code relies on standard JavaScript language constructs, such as objects, arrays, and the `Proxy` constructor.

**Other Considerations**

* **Caching**: MeasureThat.net may use caching to store intermediate results and reduce the load on the benchmarking server.
* **Browser-specific behavior**: Different browsers may exhibit varying performance characteristics for this benchmark. The provided results are specific to Chrome 122 on a Mac OS X 10.15.7 system.

**Alternatives**

If you need to benchmark similar scenarios, consider using alternative approaches or tools:

1. **Other JavaScript benchmarking frameworks**, such as Benchmark.js or jsperf.
2. **Language-specific profiling tools**, like WebKit's `JavaScriptProfile` or Node.js's built-in ` profiler`.
3. **Custom benchmarking libraries** that provide more control over the benchmarking process.

Keep in mind that each approach has its strengths and weaknesses, and choosing the right one depends on your specific use case and requirements.

Related benchmarks:

Access to Proxy vs Object test (version: 0)

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

Created: one year ago by: Guest

Jump to the latest result

Object access

Proxy access

Proxy with get handler access

Getter

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):