Benchmark: fetch.arrayBuffer() vs fetch.bytes()

HTML Preparation code:

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AخA
 
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Tests:

fetch.arrayBuffer() [Async/Deferred]
var response = await fetch('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'); await response.arrayBuffer(); deferred.resolve();
var response = await fetch('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');
await response.arrayBuffer();
deferred.resolve();
fetch.bytes() [Async/Deferred]
var response = await fetch('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'); await response.bytes(); deferred.resolve();
var response = await fetch('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');
await response.bytes();
deferred.resolve();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
fetch.arrayBuffer()
fetch.bytes()

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
fetch.arrayBuffer()	4.8 Ops/sec
fetch.bytes()	4.7 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated 2 months ago):

The benchmark defined in the JSON compares the performance of two methods for handling response data from a fetch request in JavaScript: fetch.arrayBuffer() and fetch.bytes(). Both methods are used to retrieve binary data from a server. Here’s a detailed breakdown of each approach, along with their pros, cons, and other considerations.

Options Compared

fetch.arrayBuffer()
- Purpose: This method returns a promise that resolves with an ArrayBuffer representing the binary data. An ArrayBuffer is a generic, fixed-length raw binary data buffer.
- Usage:
```
var response = await fetch(url);
var arrayBuffer = await response.arrayBuffer();
```
- Benchmark Results: This method produced 3.2407 executions per second on the test machine.
fetch.bytes()
- Purpose: This method is presumed to be a hypothetical function for illustrative purposes as it's not a part of the standard Fetch API in JavaScript. Typically, one would use response.blob() or similar methods for handling binary data. If it existed in this benchmark context, it would likely retrieve raw byte data similarly to arrayBuffer.
- Usage:
```
var response = await fetch(url);
var bytes = await response.bytes(); // This assumes bytes() is valid
```
- Benchmark Results: This method recorded 3.2129 executions per second in the benchmarking results.

Pros and Cons

`fetch.arrayBuffer()`

Pros:
- Part of the standard Fetch API.
- Provides direct access to the underlying binary data, which is useful for applications that need efficient manipulation of binary data like images or audio.
- Ideal for handling binary data structures such as typed arrays.
Cons:
- Requires management of the ArrayBuffer, which adds complexity in terms of data manipulation compared to higher-level abstractions like Blob or File.

`fetch.bytes()`

Pros:
- If it were implemented, it could provide a simpler interface for handling binary data (assuming it abstracts byte handling effectively).
Cons:
- It's not a standard feature of the Fetch API, meaning it could lead to compatibility issues across different environments.
- If similar functionalities exist (like using response.blob()), having a separate bytes() method could lead to redundancy.

Other Considerations

Performance Difference: The performance between the two methods was minimal; arrayBuffer() slightly outperformed bytes() in this particular benchmark. It suggests that for standard compliant and widely supported methods, arrayBuffer() might be the safer choice for developers.
Cross-Browser Compatibility: Since fetch.arrayBuffer() is a standardized method, it’s supported across modern browsers. In contrast, fetch.bytes() would not have broad support, making it less safe for production code.

Alternatives

fetch.blob(): This method allows fetching binary data as a Blob object, which represents a file-like object of immutable, raw data. It’s easier to work with in the context of uploading files or displaying images on a webpage.
```
var response = await fetch(url);
var blob = await response.blob();
```
fetch.text(): If the data is in text format, this method converts the response to text, which can be beneficial for handling JSON responses or readable text data.
Typed Arrays: If you are using arrayBuffer(), you can create various typed arrays such as Uint8Array, Float32Array, etc., based on the ArrayBuffer to work with binary data more conveniently.

Conclusion

In summary, this benchmark is essential for assessing the performance of different data retrieval methods within the Fetch API in JavaScript. Developers should prefer standardized methods like fetch.arrayBuffer() for binary data handling for improved compatibility and performance. The experimental fetch.bytes() could be considered if it becomes standardized and proves to be beneficial in practice, but should be approached with caution due to its current non-standard status.

LLMs can make mistakes. Check important info.

The benchmark defined in the JSON compares the performance of two methods for handling response data from a fetch request in JavaScript: `fetch.arrayBuffer()` and `fetch.bytes()`. Both methods are used to retrieve binary data from a server. Here’s a detailed breakdown of each approach, along with their pros, cons, and other considerations.

### Options Compared

1. **`fetch.arrayBuffer()`**
   - **Purpose**: This method returns a promise that resolves with an `ArrayBuffer` representing the binary data. An `ArrayBuffer` is a generic, fixed-length raw binary data buffer.
   - **Usage**:
     ```javascript
     var response = await fetch(url);
     var arrayBuffer = await response.arrayBuffer();
     ```
   - **Benchmark Results**: This method produced 3.2407 executions per second on the test machine.

2. **`fetch.bytes()`**
   - **Purpose**: This method is presumed to be a hypothetical function for illustrative purposes as it's not a part of the standard Fetch API in JavaScript. Typically, one would use `response.blob()` or similar methods for handling binary data. If it existed in this benchmark context, it would likely retrieve raw byte data similarly to `arrayBuffer`.
   - **Usage**:
     ```javascript
     var response = await fetch(url);
     var bytes = await response.bytes(); // This assumes bytes() is valid
     ```
   - **Benchmark Results**: This method recorded 3.2129 executions per second in the benchmarking results.

### Pros and Cons

#### `fetch.arrayBuffer()`
- **Pros**:
  - Part of the standard Fetch API.
  - Provides direct access to the underlying binary data, which is useful for applications that need efficient manipulation of binary data like images or audio.
  - Ideal for handling binary data structures such as typed arrays.

- **Cons**:
  - Requires management of the `ArrayBuffer`, which adds complexity in terms of data manipulation compared to higher-level abstractions like `Blob` or `File`.

#### `fetch.bytes()`
- **Pros**:
  - If it were implemented, it could provide a simpler interface for handling binary data (assuming it abstracts byte handling effectively).
  
- **Cons**:
  - It's not a standard feature of the Fetch API, meaning it could lead to compatibility issues across different environments.
  - If similar functionalities exist (like using `response.blob()`), having a separate `bytes()` method could lead to redundancy.

### Other Considerations
- **Performance Difference**: The performance between the two methods was minimal; `arrayBuffer()` slightly outperformed `bytes()` in this particular benchmark. It suggests that for standard compliant and widely supported methods, `arrayBuffer()` might be the safer choice for developers.

- **Cross-Browser Compatibility**: Since `fetch.arrayBuffer()` is a standardized method, it’s supported across modern browsers. In contrast, `fetch.bytes()` would not have broad support, making it less safe for production code.

### Alternatives
1. **`fetch.blob()`**: This method allows fetching binary data as a `Blob` object, which represents a file-like object of immutable, raw data. It’s easier to work with in the context of uploading files or displaying images on a webpage.
   ```javascript
   var response = await fetch(url);
   var blob = await response.blob();
   ```

2. **`fetch.text()`**: If the data is in text format, this method converts the response to text, which can be beneficial for handling JSON responses or readable text data.

3. **Typed Arrays**: If you are using `arrayBuffer()`, you can create various typed arrays such as `Uint8Array`, `Float32Array`, etc., based on the `ArrayBuffer` to work with binary data more conveniently.

### Conclusion
In summary, this benchmark is essential for assessing the performance of different data retrieval methods within the Fetch API in JavaScript. Developers should prefer standardized methods like `fetch.arrayBuffer()` for binary data handling for improved compatibility and performance. The experimental `fetch.bytes()` could be considered if it becomes standardized and proves to be beneficial in practice, but should be approached with caution due to its current non-standard status.

Related benchmarks:

fetch.arrayBuffer() vs fetch.bytes() (version: 1)

Comparing performance of: fetch.arrayBuffer() vs fetch.bytes()

Created: 2 months ago by: Guest

Jump to the latest result

fetch.arrayBuffer() [Async/Deferred]

fetch.bytes() [Async/Deferred]