Benchmark: Try/catch performance 2

HTML Preparation code:

<div id="test"></div>

Tests:

Try/catch
try { var id = document.getElementById("test"); } catch(error) { console.log(error); } finally { console.log("!"); }
Without try/catch
var id = document.getElementById("test"); console.log("!");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Try/catch
Without try/catch

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser/OS: Chrome 105 on Windows

View result in a separate tab

Test name	Executions per second
Try/catch	51522.3 Ops/sec
Without try/catch	52209.9 Ops/sec

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

LLMs can make mistakes. Check important info.

Measuring performance differences between various approaches is crucial in web development, and tools like MeasureThat.net help us do just that.

**Benchmark Overview**

The provided benchmark measures the performance difference between using try-catch blocks versus not using them when trying to retrieve an HTML element on a webpage. The script preparation code is empty, which means no additional setup or initialization is needed before running each test case.

**Script Preparation Code and Html Preparation Code**

* `Script Preparation Code`: Empty, meaning no initial script execution is required.
* `Html Preparation Code`: `<div id="test"></div>`, which sets up a simple HTML element that will be used to test the retrieval of an element by ID.

**Individual Test Cases**

The benchmark consists of two test cases:

1. **Try/catch**: The script attempts to retrieve the `id` attribute of the `#test` HTML element using `document.getElementById()`. If successful, it logs a message; otherwise, it catches the error and logs another message.
2. **Without try/catch**: This test case is identical to the first one but omits the try-catch block.

**Library Used**

None, as this benchmark doesn't rely on any external libraries for its functionality.

**Special JS Feature or Syntax (if applicable)**

This benchmark uses JavaScript's `try`-`catch` block and the `finally` keyword. The `finally` clause is executed regardless of whether an exception occurred or not. This allows us to ensure that a log statement is always executed after the element retrieval attempt.

**Pros and Cons**

### Try/Catch Approach

* **Pros**:
	+ Provides better error handling by catching any errors that might occur during execution.
	+ Ensures that resources are released, even if an exception occurs (e.g., closing files).
* **Cons**:
	+ Can add overhead due to the additional checks and possible exceptions.
	+ May lead to slower performance, depending on the type of error.

### Without Try/Catch Approach

* **Pros**:
	+ Can be faster since it eliminates the need for exception handling checks.
	+ Less overhead in terms of code and execution time.
* **Cons**:
	+ Leaves resources open if an exception occurs, potentially leading to memory leaks or other issues.
	+ May not provide adequate error handling.

**Other Alternatives**

If you're looking for alternative approaches to benchmarking performance differences in JavaScript, consider the following:

1. **Benchmarking libraries**: Tools like BenchmarkJS, JSPerf, or Microbenchmark can help you create more complex benchmarks and compare performance between different algorithms or implementations.
2. **Chromatic**: A Chrome DevTools extension that allows you to measure JavaScript performance using a variety of methods, including benchmarking individual functions or entire pages.
3. **V8 Profiler**: An integrated debugger in the Google Chrome browser that helps you analyze and optimize JavaScript performance by identifying hotspots and providing recommendations for improvement.

When choosing an alternative approach, consider the specific requirements of your project, such as the complexity of the code being compared, the desired level of precision, and the tools available to you.

Related benchmarks:

Try/catch performance 2 (version: 0)

Comparing performance of: Try/catch vs Without try/catch

Created: 2 years ago by: Guest

Jump to the latest result

Try/catch

Without try/catch

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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