Benchmark: Access to Proxy vs Object -- by function

Script Preparation code:

object = { value: 'data' };
function getValue() {
 return object.value 
}
proxyWithHandler = new Proxy(object, {
	get(target, prop, receiver) {
    	return target[prop]
    }
})

Tests:

Object access
object.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 with get handler access

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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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 JSON and test cases.

**Benchmark Definition**

The benchmark definition is a script that creates an object `object` with a property `value` containing the string `'data'`. It then defines a function `getValue()` that returns the value of `object.value`. Additionally, it creates a proxy instance `proxyWithHandler` with a get handler that simply returns the value of the requested property. The script preparation code is the following:
```javascript
object = { value: 'data' };
function getValue() {
  return object.value;
}
proxyWithHandler = new Proxy(object, {
  get(target, prop, receiver) {
    return target[prop];
  }
});
```
**Options Compared**

The benchmark compares two options:

1. **Direct Object Access**: The `object.value` syntax is used to access the value of the `object`.
2. **Proxy with Get Handler**: The `proxyWithHandler.value` syntax is used to access the value of the `proxyWithHandler` instance.

**Pros and Cons**

**Direct Object Access (Object)**

Pros:

* Simple and straightforward
* Does not introduce any additional overhead or complexity

Cons:

* May be slower due to the JavaScript engine's need to search for the property in the object

**Proxy with Get Handler**

Pros:

* Can be faster since it allows the JavaScript engine to directly access the requested property without searching through the object.
* Reduces the number of property lookups required by the JavaScript engine.

Cons:

* Introduces additional complexity and overhead due to the creation and management of proxy instances.
* May require more CPU cycles to initialize and maintain the proxy instance.

**Other Considerations**

* The benchmark assumes that the JavaScript engine is able to optimize away unnecessary operations, such as searching for properties in objects.
* The results may be influenced by factors like cache hits, object sizes, and the number of iterations performed during each run.

**Library Used (Proxy)**

The `Proxy` constructor is a built-in JavaScript function that creates a proxy instance. A proxy is an object that provides additional functionality or behavior when properties are accessed, such as validation, encryption, or transformation.

In this benchmark, the proxy is used to create a handler for getting values from the `object`. The handler simply returns the value of the requested property without modifying it.

**Special JS Feature/ Syntax**

There is no special JavaScript feature or syntax used in this benchmark. It only relies on standard JavaScript features and constructs.

**Alternatives**

If you want to optimize object access, you can consider using other techniques such as:

* Using `const` or `let` instead of `var` for variable declarations.
* Avoiding unnecessary property lookups by caching frequently accessed values.
* Using caching libraries or frameworks like LRU Cache or Redis to store and retrieve cached data.

However, in this specific benchmark, the focus is on comparing direct object access with proxy-based access, so it's essential to carefully consider the trade-offs between simplicity, performance, and complexity.

Related benchmarks:

Access to Proxy vs Object -- by function (version: 0)

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

Created: 3 years ago by: Guest

Jump to the latest result

Object access

Proxy with get handler access

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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