Benchmark: Two Pi - MeasureThat.net

Script Preparation code:

var Calc = {
    twoPI: Math.PI * 2
}

Tests:

Reference
var temp = 1 + Calc.twoPi;
Calculate
var temp = 1 + Math.PI * 2;
Static
var temp = 1 + 6.28318530718;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Reference
Calculate
Static

Fastest: N/A

Slowest: N/A

Latest run results:

No previous 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 provided benchmark JSON and its test cases to understand what's being tested.

**Benchmark Definition**

The benchmark definition is a simple JavaScript code snippet that defines an object `Calc` with a property `twoPI`. The value of `twoPI` is calculated as `Math.PI * 2`, which is essentially equivalent to `6.28318530718`.

**Script Preparation Code**

The script preparation code defines the `Calc` object, which contains the value of `twoPI`. This allows the test cases to reference this value without having to recalculate it.

**Html Preparation Code**

There is no HTML preparation code provided, which means that the benchmark does not involve any DOM manipulation or rendering.

Now, let's analyze the individual test cases:

1. **Reference**
This test case uses the `Calc` object defined in the script preparation code and accesses its `twoPI` property directly. This approach relies on the object being available in scope when the code is executed.
2. **Calculate**
This test case calculates the value of `twoPI` using `Math.PI * 2`. This approach does not rely on an external reference or object, but rather performs the calculation inline.
3. **Static**
This test case uses a hardcoded value for `twoPI`, which is `6.28318530718`. This approach provides a fixed value without any dependency on external resources.

**Pros and Cons of Each Approach**

* **Reference**: Pros - easier to read and maintain, as the value is defined in a separate object. Cons - requires the `Calc` object to be available in scope, which might not always be the case.
* **Calculate**: Pros - more self-contained, as the calculation is performed inline. Cons - can lead to longer execution times due to the calculation being done at runtime.
* **Static**: Pros - provides a fixed value that doesn't depend on external resources. Cons - hardcodes the value, which might not be desirable for all use cases.

**Library and Its Purpose**

There is no library explicitly mentioned in this benchmark definition. However, if we consider `Math` as a library, its purpose is to provide mathematical functions and constants, such as `PI`.

**Special JS Features or Syntax**

This benchmark does not involve any special JavaScript features or syntax. It's a straightforward test of how the browser evaluates a simple expression involving an object reference.

**Other Alternatives**

To compare these approaches, other benchmarking methods could include:

* Using a different library or implementation for `Math.PI`, such as `const PI = 3.14159265359;` in a strict mode.
* Creating a more complex expression that involves multiple calculations and operations.
* Testing the performance of different optimization techniques, such as inlining or caching the calculated value.

Keep in mind that these alternatives would require significant changes to the benchmark definition and test cases to make them comparable.

Related benchmarks:

Two Pi (version: 0)

Recalculating 2*Pi vs referencing

Comparing performance of: Reference vs Calculate vs Static

Created: 3 years ago by: Guest

Jump to the latest result

Reference

Calculate

Static

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):