Benchmark: proxy proto 2 - MeasureThat.net

Script Preparation code:

var proto = {}
var handler = {}

Tests:

proto
var a = {} a.__proto__ = proto
proxy
var a = {} var b = new Proxy(a, handler)
proto + proxy
var a = {} a.__proto__ = proto var b = new Proxy(a, handler)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
proto
proxy
proto + proxy

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
proto	13980915.0 Ops/sec
proxy	10767196.0 Ops/sec
proto + proxy	6574978.5 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and its results for you.

**Benchmark Overview**

MeasureThat.net is testing the performance of three different approaches to create objects with a prototype chain in JavaScript:

1. Setting the `__proto__` property directly on an object (`"proto"` test case)
2. Creating a Proxy object using the `Proxy` constructor and specifying a handler object (`"proxy"` test case)
3. Combining both approaches by setting the `__proto__` property first, then creating a Proxy object (`"proto + proxy"` test case)

**Options Compared**

The benchmark is comparing the performance of three different options:

* Directly setting the `__proto__` property on an object
* Creating a Proxy object using the `Proxy` constructor and specifying a handler object
* Combining both approaches to create objects with a prototype chain

**Pros and Cons of Each Approach**

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

1. **Setting `__proto__` directly**: This approach is simple and straightforward, but it may have performance implications if the `__proto__` property is accessed frequently.
	* Pros: Easy to implement, minimal overhead
	* Cons: May have performance issues due to frequent access or modification of the `__proto__` property
2. **Creating a Proxy object**: This approach provides a more flexible and secure way to create objects with a prototype chain, as it allows for custom handling and validation of property accesses.
	* Pros: Provides flexibility and security benefits, can be optimized for performance
	* Cons: May introduce additional overhead due to the creation of a Proxy object and its associated metadata
3. **Combining both approaches**: This approach allows for a balance between simplicity and flexibility, as it sets up the prototype chain first and then creates a Proxy object on top of it.
	* Pros: Offers a balance between simplicity and flexibility, reduces overhead compared to creating a full-fledged Proxy object
	* Cons: May still introduce some overhead due to the creation of the Proxy object and its associated metadata

**Library Used**

The benchmark uses the `Proxy` constructor and handler objects to create Proxy objects. The `Proxy` constructor is a built-in JavaScript function that allows for custom handling and validation of property accesses.

**Special JS Feature or Syntax**

This benchmark does not use any special features or syntax, such as ES6 classes, async/await, or generators. It only uses basic JavaScript constructs like variables, functions, and objects.

**Other Alternatives**

There are other alternatives to creating objects with a prototype chain in JavaScript, such as:

* Using a library like Lodash's `cloneDeep` function to create deep copies of objects
* Using a class-based approach to create objects with a prototype chain
* Using a module bundler like Webpack or Rollup to optimize and bundle code for performance

Keep in mind that the specific alternatives may depend on the use case and requirements of the application.

Related benchmarks:

proxy proto 2 (version: 0)

Comparing performance of: proto vs proxy vs proto + proxy

Created: 2 years ago by: Guest

Jump to the latest result

proto

proxy

proto + proxy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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