Benchmark: Comparação entre maps

Tests:

teste com verificação
const teste = (array) => { if (array.length !== 0) return; return array.map((teste) => { return teste; }); }; var arr = []; teste(arr);
teste sem verificação
const teste2 = (array) => { return array.map((teste) => { return teste; }); }; var arr = []; teste2(arr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
teste com verificação
teste sem verificação

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.

**Overview of the Benchmark**

The provided benchmark is designed to measure the performance difference between two approaches: one that includes a verification step (`teste com verificação`) and another that does not (`teste sem verificação`). The test case involves creating an array, mapping over it, and returning the resulting array. The main variation lies in whether the array has at least one element before running the `map` function.

**Test Case Explanation**

In both test cases:

1. An empty array is created using the variable `arr`.
2. A function `teste` or `teste2` is called, which maps over the array and returns a new array with the same elements.
3. The presence of a verification step in one of the functions (`if (array.length !== 0)`).

The test case measures the time taken to run these two approaches.

**Options Compared**

Two options are compared:

1. **With Verification**: This approach includes an additional `if` statement that checks if the array has at least one element before running the `map` function. If the array is empty, it returns immediately (`return;`). This optimization might reduce the number of iterations in some cases.
2. **Without Verification**: This approach skips the verification step and always runs the `map` function on an empty array.

**Pros and Cons**

**With Verification:**

Pros:

* Might improve performance by avoiding unnecessary iterations when the array is empty
* Provides a clear optimization mechanism

Cons:

* Introduces additional overhead due to the `if` statement and the `return;` instruction
* May not always be beneficial, as the `map` function may still execute quickly for small arrays

**Without Verification:**

Pros:

* Reduces overhead by skipping unnecessary iterations
* May improve performance in cases where the array is often empty

Cons:

* Does not provide any optimization benefits in all scenarios
* May lead to suboptimal performance if the `map` function executes slowly due to other factors (e.g., complex logic)

**Library and Special JS Features**

None of the test cases use specific libraries or special JavaScript features.

**Other Considerations**

The benchmark only measures the execution time of these two approaches, which may not provide a complete picture of performance. Other factors like memory allocation, garbage collection, and cache hits may also impact the overall performance.

For further optimization, consider profiling the `map` function to identify potential bottlenecks or using more advanced optimization techniques, such as memoization or caching.

**Alternatives**

Other alternatives for benchmarking JavaScript microbenchmarks include:

1. **Bench.js**: A popular testing framework specifically designed for performance benchmarking.
2. **Benchmark.js**: Another well-maintained testing framework for benchmarking JavaScript applications.
3. **JSPerf**: A tool that allows you to create and run benchmarks in the browser.

Each of these alternatives offers different features, flexibility, and ease of use compared to MeasureThat.net.

Related benchmarks:

Comparação entre maps (version: 0)

Comparing performance of: teste com verificação vs teste sem verificação

Created: 2 years ago by: Guest

Jump to the latest result

teste com verificação

teste sem verificação

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):