Benchmark: func vs js - MeasureThat.net

Tests:

func
let a = function () { return "HELLO"; } let b = function () { return "WORLD"; } a === b
jsobj
let a = {hello: "world"} let b = {foo: "bar"} a === b

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
func
jsobj

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down the JavaScript microbenchmark on MeasureThat.net.

**What is tested?**

The benchmark tests two approaches:

1. **Function equality**: The first test case ("func") compares two functions defined using the `let` keyword with different return values: `"HELLO"` and `"WORLD"`. The test checks whether these two functions are considered equal by JavaScript.
2. **Object comparison**: The second test case ("jsobj") compares two objects: one with a property named "hello" set to the string `"world"`, and another with a property named "foo" set to the string `"bar"`. The test checks whether these two objects are considered equal.

**Options compared**

The benchmark tests different approaches:

* **Function equality**: This approach compares the output of two functions, which can be affected by various factors such as function signature, argument types, and scope.
* **Object comparison**: This approach compares the contents of two objects, considering their property names and values.

**Pros and cons of each approach:**

1. **Function equality**:
	* Pros:
		+ Can be useful for testing functions with specific signatures or behaviors.
		+ May reveal issues related to function caching or memoization.
	* Cons:
		+ Can be influenced by factors like argument types, scope, and function calls.
		+ May not accurately represent real-world use cases where functions are used as values or passed around.
2. **Object comparison**:
	* Pros:
		+ More relevant to real-world scenarios where objects are compared and used in arrays, maps, etc.
		+ Can reveal issues related to object property access, mutation, and equality checks.
	* Cons:
		+ May be slower due to the overhead of comparing properties.
		+ Can lead to subtle differences between identical-looking objects (e.g., one being a primitive value while the other is an object reference).

**Library/dependency**

There is no explicit mention of any JavaScript libraries or dependencies in the provided code. However, MeasureThat.net likely uses some internal implementation to execute and compare functions and objects.

**Special JS features/syntax**

There are no special JavaScript features or syntax used in these test cases that would require additional explanation beyond their general functionality.

**Other alternatives**

If you wanted to rewrite this benchmark using alternative approaches, you might consider:

1. **Using a different testing framework**: Instead of MeasureThat.net's built-in implementation, you could use a separate testing framework like Jest or Mocha.
2. **Testing with different browser versions**: The benchmark currently only runs on Chromium 75. You could add more test cases to run the benchmarks on other browser versions or platforms (e.g., Firefox, Safari, Edge).
3. **Incorporating additional scenarios**: You might add more test cases to cover other aspects of function and object behavior, such as:
	* Testing for strict equality (`===`) versus loose equality (`==`).
	* Checking for specific error messages when comparing functions or objects.
	* Investigating the performance impact of using different comparison operators (e.g., `===`, `!==`, `==`, `!=`).

Related benchmarks:

func vs js (version: 0)

Comparing performance of: func vs jsobj

Created: 6 years ago by: Guest

Jump to the latest result

func

jsobj

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):