Benchmark: clone request - MeasureThat.net

Tests:

test 1
const r = new Request('http://www.google.com')
test 2
const r = new Request('http://www.google.com') const rr = new Request(r)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test 1
test 2

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/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
test 1	743925.0 Ops/sec
test 2	461191.4 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is being tested?**

The benchmark measures how long it takes to create two new instances of a `Request` object, one after another, in different contexts. The `Request` object is used to represent an HTTP request, and creating such objects can be computationally expensive depending on the specific use case.

**Options compared:**

There are two main options being compared:

1. **Single-line creation**: `const r = new Request('http://www.google.com')`
2. **Multi-line creation with chaining**: `const r = new Request('http://www.google.com'); const rr = new Request(r)`

The benchmark tests how much time it takes to execute each of these approaches.

**Pros and Cons:**

* **Single-line creation**:
	+ Pros: simpler, more concise code
	+ Cons: might involve additional overhead due to the single statement execution
* **Multi-line creation with chaining**:
	+ Pros: can be beneficial when working with complex requests or chained operations
	+ Cons: adds an extra step of execution, which might slow down the overall process

In general, the choice between these approaches depends on the specific use case and personal preference.

**Library usage**

The `Request` object is likely a part of the [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API), a modern API for making HTTP requests in JavaScript. The Fetch API provides an easier-to-use alternative to traditional XMLHttpRequest-based approaches, offering features like cancellation and promise-like behavior.

**Special JS feature**

The benchmark does not specifically test any special JavaScript features or syntax beyond the use of the `Request` object. However, it's worth noting that modern browsers have improved performance optimizations for creating objects, such as "object creation hoisting" (a mechanism to pre-allocate memory for newly created objects).

**Other alternatives**

To create a benchmark like this, you could consider using other methods, such as:

1. Creating multiple instances of an object without calling its constructor.
2. Using `Object.create()` or similar methods to create new objects.
3. Testing different constructors (e.g., `Array`, `Number`, etc.) instead of just `Request`.

Keep in mind that the specific alternative will depend on the goals and requirements of your benchmark.

I hope this explanation helps!

Related benchmarks:

clone request (version: 0)

clone request

Comparing performance of: test 1 vs test 2

Created: 2 years ago by: Guest

Jump to the latest result

test 1

test 2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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