Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Window Perf
(version: 0)
Measuring performance of {...window} vs New Proxy(window)
Comparing performance of:
Rest vs Proxy
Created:
5 years ago
by:
Guest
Jump to the latest result
Tests:
Rest
const fakeWindow = {...window};
Proxy
const fakeWindow = new Proxy(window, {get(t, p) {return t[p];}});
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Rest
Proxy
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested, compared, and analyzed. **Benchmark Overview** The benchmark is designed to measure the performance difference between two approaches for accessing the `window` object: 1. **Rest**: Using the rest operator (`...`) to create a new object that copies all properties from the original `window` object. 2. **Proxy**: Creating a new proxy instance of the `window` object using the `Proxy` constructor and providing a getter function that returns the value of the accessed property. **Options Compared** The benchmark is comparing the performance of these two approaches: * **Rest**: Creates a new object by copying all properties from the original `window` object. * **Proxy**: Creates a proxy instance of the `window` object, which allows for dynamic property access and manipulation. **Pros and Cons of Each Approach** * **Rest**: + Pros: - Simple to implement - Fast, as it creates a new object with the same properties as the original `window` + Cons: - Creates an additional object, which may incur memory overhead - May not be suitable for use cases where property access needs to be dynamically modified or managed * **Proxy**: + Pros: - Allows for dynamic property access and manipulation - Can be useful in scenarios where the original `window` object is being manipulated or extended externally + Cons: - More complex to implement, as it requires creating a proxy instance and defining getter functions - May incur additional overhead due to the creation of a new proxy instance **Library Used (if applicable)** In this case, no external library is explicitly mentioned. However, the `Proxy` constructor is a built-in JavaScript feature that allows for creating proxy objects. **Special JS Features or Syntax** None are mentioned in the provided benchmark definition or test cases. The focus is on comparing two simple approaches to accessing the `window` object. **Other Alternatives** If you're looking for alternative ways to access or manipulate the `window` object, some options could include: * Using a library like jQuery or Lodash to work with the `window` object * Utilizing other JavaScript features like getters and setters or using a different data structure (e.g., an array) to represent the window object * Considering alternative approaches for accessing or manipulating the `window` object, such as using a custom wrapper function or class Keep in mind that these alternatives may not be directly comparable to the `Rest` and `Proxy` approaches used in this benchmark.
Related benchmarks:
Proxy vs Object vs Object.setPrototypeOf
window.innerWidth vs window.screen.availWidth
Proxy vs Object vs Object.setPrototypeOf vs Object.create
Callback vs Proxy apply
Comments
Confirm delete:
Do you really want to delete benchmark?