Benchmark: Namespacing id 3

Script Preparation code:

let id = 0;
namespaces = [undefined, 'dee11d4e-63c6-4d90-983c-5c9f1e79e96c', '3b241101-e2bb-4255-8caf-4136c566a962'];

const elementsPage = new Array(1000).fill({}).map((value, index) => index);
const navBar = new Array(1000).fill({}).map((value, index) => `${namespaces[1]}.${index}`);
const somethingElse = new Array(1000).fill({}).map((value, index) => `${namespaces[2]}.${index}`);

ids = [
  ...elementsPage,
  ...somethingElse,
  ...navBar
];

entities = {
  ...elementsPage.reduce((acc, val) => ({...acc, [val]: {}}), {}),
  ...navBar.reduce((acc, val) => ({...acc, [val]: {ns: val}}), {}),
  ...somethingElse.reduce((acc, val) => ({...acc, [val]: {ns: val}}), {}),
};

Tests:

Group by split (unknown namespaces)
const idsByNamespace = {}; for (let i = 0; i < ids.length; i++) { const idParts = (ids[i].split && ids[i].split('.')) || [ids[i]]; // if (!idParts[1]) { // if (!idsByNamespace['']) { // idsByNamespace[''] = [entities[i]]; //} else { // idsByNamespace[''].push(entities[i]); //} //else { if (!idsByNamespace[idParts[0]]) { idsByNamespace[idParts[0]] = [entities[i]]; } else { idsByNamespace[idParts[0]].push(entities[i]); } //} }
Known namespaces
const idsByNamespace = {}; namespaces.forEach(ns => { // TODO: with number idsByNamespace[ns] = ids.filter(id => (ns === undefined && Number.isInteger(id)) || (id.startsWith && id.startsWith(`${ns}.`))).map(id => entities[id]) });
Convert all from ids to entities (map)
const idsIntoEntityArray = ids.map(id => entities[id]);
Convert all from entities to entitiesArray (object keys)
namespaces.reduce((acc, ns) => { return {...acc, [ns]: Object.entries(entities).filter(([key, value]) => value.ns === ns) } }, {});
Take all and filter by namespace
const eArray = ids.map(id => entities[id]); namespaces.reduce((acc, ns) => { return {...acc, [ns]: eArray.filter(e => e.ns === ns) } }, {});

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Group by split (unknown namespaces)
Known namespaces
Convert all from ids to entities (map)
Convert all from entities to entitiesArray (object keys)
Take all and filter by namespace

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.

Measuring JavaScript performance is an essential task in software development, and MeasureThat.net provides a great platform for benchmarking.

Now, let's dive into the provided JSON data and explain what's being tested:

**Benchmark Definition**

The benchmark definition specifies how to prepare the input data, which consists of three types of arrays: `ids`, `elementsPage`, and `somethingElse`. These arrays are filled with objects that will be used to test various functions.

**Html Preparation Code**

There is no HTML preparation code specified in the JSON data. This means that the benchmark assumes a simple JavaScript environment where HTML elements are not involved.

**Test Cases**

The benchmark consists of four individual test cases, each with its own `Benchmark Definition` and `Test Name`. These definitions specify how to manipulate the input data and which functions to apply:

1. **Convert all from ids to entities (map)**: This test case uses the `map()` function to convert the `ids` array into an entity array.
2. **Take all and filter by namespace**: This test case uses the `filter()` function in combination with a loop to take all elements from the `ids` array and filter them based on their namespace.
3. **Group by split (unknown namespaces)**: This test case uses a loop and the `split()` function to group elements from the `ids` array based on their namespace.
4. **Known namespaces**: This test case uses a `forEach()` loop to iterate over an array of known namespaces and filter the `ids` array accordingly.

**Libraries**

Some libraries are used in these test cases:

* `Array.prototype.map()`: A built-in JavaScript function for converting arrays into new arrays using a callback function.
* `Array.prototype.filter()`: A built-in JavaScript function for creating a new array with all elements that pass the test implemented by a provided function.

**Other Considerations**

When evaluating these test cases, consider the following factors:

* **Efficiency**: Which approach is more efficient in terms of time complexity and number of operations?
* **Readability**: How readable are the code snippets? Are they easy to understand for someone unfamiliar with the specific syntax or library?
* **Maintainability**: How maintainable are these test cases? Can they be easily modified or extended without affecting other parts of the codebase?

**Alternatives**

If you were to rewrite these test cases, consider alternative approaches:

* Instead of using `map()`, you could use a higher-order function like `reduce()` to achieve the same result.
* To improve efficiency, you could use more advanced data structures like a Map or a Trie to store and retrieve elements by namespace.

However, in this case, the existing implementation is straightforward and easy to understand. The choice of library functions (e.g., `map()`, `filter()`) and loop constructs (e.g., `forEach()`, `for()` loops) seems optimal for the specific task at hand.

Now that we've analyzed the test cases, let's move on to interpreting the benchmark results...

Related benchmarks:

Namespacing id 3 (version: 1)

Comparing performance of: Group by split (unknown namespaces) vs Known namespaces vs Convert all from ids to entities (map) vs Convert all from entities to entitiesArray (object keys) vs Take all and filter by namespace

Created: 4 years ago by: Registered User

Jump to the latest result

Group by split (unknown namespaces)

Known namespaces

Convert all from ids to entities (map)

Convert all from entities to entitiesArray (object keys)

Take all and filter by namespace

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):