Benchmark: test map - MeasureThat.net

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/react/16.3.0/cjs/react.production.min.js'></script>

Tests:

1
const exist = {1: true, 2: true} const func = (permission) => exist[permission] func(1)
2
const exist = {1: true, 2: true} const func = (permission) => exist[permission] [1].map(permission => func(permission))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

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 provided JSON data and explain what is being tested.

**Benchmark Definition**

The benchmark definition represents a JavaScript code snippet that defines two test cases:

1. `test map`: This test case uses an object called "exist" with key-value pairs `{1: true, 2: true}`. It then defines a function `func` that takes a permission as input and returns the value associated with that permission in the "exist" object. The test case calls this function with the argument `1`.
2. `test map (with array)`: This test case is similar to the previous one, but it uses an array `[1].map(permission => func(permission))` instead of calling the function directly.

**Library**

In both test cases, a React library is loaded using the script tag: `"https://cdnjs.cloudflare.com/ajax/libs/react/16.3.0/cjs/react.production.min.js"`. This library is not explicitly used in the code snippet, but it's likely that the benchmarking framework uses this library as part of its execution environment.

**Options Comparison**

The two test cases differ in how they execute the `func` function:

1. In `test map`, the function is called directly with the argument `1`.
2. In `test map (with array)`, an array method `map()` is used to apply the `func` function to each element of the array `[1]`.

**Pros and Cons**

- **Direct Function Call**: This approach has a clear and predictable execution path, which can lead to better optimization opportunities.
- **Array Method**: This approach uses a more modern JavaScript feature (the spread operator `...`) to create an array of function calls. However, it may introduce additional overhead due to the creation of the temporary array.

**Considerations**

* The benchmarking framework might use some heuristics or optimizations that take into account the presence of modern JavaScript features like `map()`.
* The choice of approach (direct call vs. array method) can affect the performance characteristics of the code, but it's unlikely to have a significant impact on the overall result.

**Special JS Feature/Syntax**

The use of the spread operator `...` in the second test case (`test map (with array)`). While not strictly necessary for this specific example, it's a modern JavaScript feature that can be useful in other contexts.

**Other Alternatives**

Some alternative approaches to executing the `func` function could include:

* Using a loop instead of an array method
* Using a different data structure, such as a linked list or a stack, to store the permissions and values
* Optimizing the function call itself, perhaps by using memoization or caching

Related benchmarks:

test map (version: 0)

Comparing performance of: 1 vs 2

Created: 4 years ago by: Guest

Jump to the latest result

1

2

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):