Benchmark: for vs funcs2 - MeasureThat.net

Script Preparation code:

var s = "d2D2wfd#T%$%^Hnfsg/';.,sdg";

Tests:

map
let sa = s.split(''); sa.map(c => c.charCodeAt(0));
for
let sa = []; for(let i = 0; i < s.length; i++) { sa.push(s[i].charCodeAt(0)); }
foreach
let sa = s.split(''); let o = []; sa.forEach(c => o.push(c.charCodeAt(0)));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
map
for
foreach

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.

**Benchmark Overview**

The provided JSON represents a JavaScript microbenchmark created on MeasureThat.net. The benchmark compares the performance of three different approaches: `for`, `forEach`, and `map` methods for processing the characters in a string.

**Test Case Breakdown**

Each test case has its own benchmark definition, which is a snippet of JavaScript code that performs the desired operation. Here's a brief explanation of each test case:

1. **Map**: This test case uses the `map()` method to create a new array with the character codes of the input string.
2. **For**: This test case uses a traditional `for` loop to iterate over the characters in the input string and push their codes into an array.
3. **Foreach**: This test case uses the `forEach()` method to iterate over the characters in the input string and push their codes into an array.

**Options Compared**

The benchmark compares the performance of these three approaches:

* `for`: A traditional loop-based approach using a `for` loop.
* `forEach`: An iteration-based approach using the `forEach()` method.
* `map`: A functional programming style approach using the `map()` method.

**Pros and Cons of Each Approach**

Here's a brief analysis of each approach:

* **For**: Pros: Simple to understand, well-supported by most browsers. Cons: May have performance overhead due to the loop.
* **Foreach**: Pros: Simplifies iteration logic, easy to read. Cons: Limited support in older browsers, may have performance overhead compared to `map`.
* **Map**: Pros: Efficient and concise, widely supported by modern browsers. Cons: May be less intuitive for those unfamiliar with functional programming.

**Library and Special Features**

In this benchmark, no special libraries or features are used beyond the standard JavaScript features mentioned above. However, it's worth noting that `forEach()` is a non-standard method in older browsers (pre-ES6) and may not work as expected.

**Alternative Approaches**

Other alternatives for processing characters in a string could include:

* Using `reduce()`: Another functional programming style approach that can be used to process strings.
* Using regular expressions: Can be an efficient way to process strings, especially when dealing with patterns.
* Using `Array.prototype.reduce()` or other array methods: Depending on the specific requirements, these methods might offer better performance than the traditional loop-based approaches.

Keep in mind that the choice of approach depends on the specific use case and requirements.

Related benchmarks:

for vs funcs2 (version: 0)

Comparing performance of: map vs for vs foreach

Created: 3 years ago by: Guest

Jump to the latest result

map

for

foreach

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):