Benchmark: test map vs each

Tests:

map
const elements = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]; const results = []; results.push(...elements.map(x => x + 1))
each
const elements = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]; const results = []; elements.forEach(x => results.push(x+1))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
map
each

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):

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Let's break down the provided benchmark and explain what's being tested, compared, and the pros and cons of each approach.

**Benchmark Overview**

The benchmark compares two approaches for iterating over an array: using the `map()` method versus using a traditional `forEach` loop. The test cases are designed to measure which approach is faster on average.

**Options Compared**

There are two options being compared:

1. **Map()**: This option uses the `map()` method, which creates a new array with the results of applying the provided function to each element in the original array.
2. **ForEach Loop**: This option uses a traditional `forEach` loop, which iterates over the elements of an array using a callback function.

**Pros and Cons**

**Map()**

Pros:

* More concise and expressive code
* Less prone to errors due to its higher-level abstraction
* Can handle more complex transformations

Cons:

* Creates a new array, which can lead to increased memory usage
* May not be as cache-friendly as traditional loops

**ForEach Loop**

Pros:

* More control over the iteration process
* Can be more efficient in terms of memory usage (no creation of a new array)
* Can handle edge cases better

Cons:

* More verbose code
* Prone to errors due to the lack of abstraction

**Other Considerations**

The benchmark also considers the number of executions per second, which is an important metric for measuring performance. Additionally, the test case uses JavaScript's built-in `Array` and `String` types, but it doesn't use any specialized libraries or frameworks.

**Library Usage**

There are no external libraries used in this benchmark. The only library mentioned is Edge, a web browser engine, which is listed as part of the "Browser" field in the benchmark results.

**Special JavaScript Features/Syntax**

This benchmark does not use any special JavaScript features or syntax beyond what's described above (i.e., `map()` and `forEach`).

**Alternative Approaches**

Other approaches for iterating over an array could include:

* Using a traditional `for` loop
* Using the `reduce()` method
* Using a queue-based approach (e.g., using `Queue` or `Deque` data structures)
* Using parallel processing libraries (e.g., Web Workers)

Related benchmarks:

test map vs each (version: 0)

Comparing performance of: map vs each

Created: 2 years ago by: Guest

Jump to the latest result

map

each

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):