Benchmark: asdfghh - MeasureThat.net

Script Preparation code:

var hello = 'Hello'; function prependHello(str) { return hello + str; } String.prototype.prependHello = function() { return hello + this; }

Tests:

+
'Hello' + ' World!';
Func
prependHello(' World!');
Prototype
' World!'.prependHello();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
+
Func
Prototype

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):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition and test cases to explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. The benchmark has three parts:

1. **Script Preparation Code**: This section defines a JavaScript function `prependHello` that concatenates the string `'Hello'` with another input string `str`. Additionally, it adds a property to the `String` prototype called `prependHello`, which also performs this concatenation.
2. **Html Preparation Code**: This section is empty and not used in the benchmarking process.
3. **Test Cases**: The benchmark consists of three test cases:
	* `+`: Tests the addition operator (`'' + ' World!'')`.
	* `Func`: Tests the function call `prependHello(' World!')`.
	* `Prototype`: Tests the prototype method invocation `' World!'.prependHello()`.

**Options being compared**

The benchmark compares the performance of three different approaches:

1. **Simple concatenation**: The addition operator (`'' + ' World!'`) using JavaScript's built-in string concatenation.
2. **Function call**: The function `prependHello` called with a string argument (`prependHello(' World!')`).
3. **Prototype method invocation**: The prototype property `prependHello` invoked on the string `' World!'`, then concatenated with `'Hello'`.

**Pros and Cons of each approach**

1. **Simple concatenation (++)**:
	* Pros: Lightweight, easy to implement, and performs well for short strings.
	* Cons: Can lead to performance issues for longer strings due to repeated string creation and copying.
2. **Function call (prependHello)**:
	* Pros: Encapsulates the logic within a named function, allowing for easier optimization and reuse.
	* Cons: Requires an extra function overhead, which can impact performance for short strings.
3. **Prototype method invocation**:
	* Pros: Takes advantage of the prototype property to reuse the existing string concatenation logic, potentially leading to better performance for longer strings.
	* Cons: May require additional setup and caching to optimize, as it relies on the existence of the `prependHello` property.

**Library or framework**

In this benchmark, there is no explicitly mentioned library or framework. However, the use of prototype methods and function calls implies that JavaScript's built-in language features are being leveraged for optimization purposes.

**Special JS feature or syntax (None)**

There are no special JS features or syntax used in this benchmark beyond what's required by JavaScript's language specifications (e.g., string concatenation, function definitions).

**Alternatives**

Other alternatives to the mentioned approaches could include:

* Using a library like `lodash` with its `concatString` utility function.
* Implementing a custom string concatenator using a loop or other optimized algorithm.
* Leveraging modern JavaScript features like template literals or internationalized string interpolation.

Keep in mind that each alternative would require significant changes to the benchmark, and the performance implications might vary depending on specific use cases and hardware configurations.

Related benchmarks:

asdfghh (version: 0)

asdfghh

Comparing performance of: + vs Func vs Prototype

Created: 8 years ago by: Guest

Jump to the latest result

+

Func

Prototype

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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