Benchmark: Access to Proxy vs Object vs Signal 2.1ff

Script Preparation code:

class Signal {
  constructor(state) {
    this.value = state;
  }

  get() {
    return this.value; 
  }
  set(newValue) {
    if (newValue !== this.value) {
      this.value = newValue;
    }
  }
}

function createSignal(value) {
  const v = new Signal(value);
  return [v.get.bind(v), v.set.bind(v)];
}
var [sigData, setData] = createSignal({
    value: 'data'
});


var mObject = {_value:'data'};
Object.defineProperty(mObject, 'value', {
    set: function (nv) {
        this._value = nv;
    },
    get: function() {
        return this._value;
    }
});

 
var proxy = new Proxy({
    value: 'data'
}, {})

Tests:

Proxy access
proxy.value
Signal access
sigData().value
object define properties
mObject.value

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Proxy access
Signal access
object define properties

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 of the provided benchmark.

**Benchmark Definition JSON**

The benchmark is designed to compare the performance of three different approaches for accessing and modifying properties on objects:

1. **Signal**: A custom signal library that provides a way to notify listeners when a value changes. In this benchmark, it's used to create two signals with an initial value of "data".
2. **Object**: The built-in JavaScript object model, which uses getters and setters to access and modify properties.
3. **Proxy**: The `Proxy` object in JavaScript, which allows you to wrap an existing object with a custom handler for certain operations.

**Options Compared**

The benchmark compares the performance of accessing and modifying the `value` property of each test case:

* Signal: `sigData().value`
* Object: `mObject.value`
* Proxy: `proxy.value`

**Pros and Cons of Each Approach**

1. **Signal**:
	* Pros:
		+ Can be used to notify listeners when a value changes.
		+ Provides a way to decouple the producer of data from its consumers.
	* Cons:
		+ Requires creating an additional signal object.
		+ May have performance overhead due to the notification mechanism.
2. **Object**:
	* Pros:
		+ Built-in and widely supported.
		+ Simple and intuitive API.
	* Cons:
		+ May not be as efficient as other approaches for large datasets or high-performance applications.
3. **Proxy**:
	* Pros:
		+ Provides a way to customize behavior for specific operations (in this case, property access).
		+ Can improve performance by avoiding unnecessary computations.
	* Cons:
		+ Requires creating a custom proxy object.
		+ May be overkill for simple use cases.

**Other Considerations**

* The benchmark uses the `createSignal` function to create two signals with an initial value of "data". This suggests that the signal library is designed to provide a way to create and manage notifications, but may also introduce additional overhead.
* The benchmark does not include any error handling or validation, which could lead to unexpected behavior in production code.

**Library Explanation**

The `Signal` library is a custom implementation that provides a way to create and notify listeners when a value changes. It consists of two functions: `createSignal` and `set`. The `createSignal` function returns an array with two values: the getter and setter functions for the signal. The setter function takes a new value as an argument and updates the internal state of the signal.

**Special JS Feature or Syntax**

The benchmark uses the `Proxy` object, which is a built-in feature in JavaScript that allows you to create a proxy object. However, it does not use any special syntax or features.

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/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Windows

View result in a separate tab

Test name	Executions per second
Proxy access	18283520.0 Ops/sec
Signal access	21705290.0 Ops/sec
object define properties	21787240.0 Ops/sec

Related benchmarks:

Access to Proxy vs Object vs Signal 2.1ff (version: 0)

Comparing performance of: Proxy access vs Signal access vs object define properties

Created: one year ago by: Guest

Jump to the latest result

Proxy access

Signal access

object define properties

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):