Benchmark: unique coordinates

Script Preparation code:

var coords = [
        35.7790733, -5.8453983,
        35.779335, -5.8465283,
        35.7790733, -5.8453983,
        35.779705, -5.84782
];

var coordinates = [];

for (var i=0; i< 1e4; i++) {
	coordinates.push(
      Math.round((Math.random()*360-180)*1e7)/1e7, 
      Math.round((Math.random()*360-180)*1e7)/1e7
    )
}

Tests:

Array from - Set
var unique = Array.from(new Set(coordinates.reduce((r, a, i) => (i % 2 ? r[r.length - 1].push(a) : r.push([a]), r), []).map(a => a.join('|'))), s => s.split('|').map(Number));
For loops
var temp = []; var unique = []; var uniqueCoords = []; for (var i = 0; i < coordinates.length; i += 2) { temp.push(coordinates[i] + '---' + coordinates[i + 1]); // create some strings } for (var i = 0; i < temp.length; i++) { if (unique.indexOf(temp[i]) === -1) // remove duplicates unique.push(temp[i]); } for (var i = 0; i < unique.length; i++) { // split the strings back into array uniqueCoords = uniqueCoords.concat(unique[i].split('---')); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array from - Set
For loops

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.

The provided JSON represents a JavaScript benchmark, specifically designed to compare the performance of two different approaches for processing an array of unique coordinates.

**Benchmark Definition:**

The benchmark definition is a script that generates an array of unique coordinates using a specific method. In this case, it uses `Array.from()` and `Set()` functions in combination with the `reduce()` function. The script also defines a test name, which is used to identify the individual test cases.

**Test Cases:**

There are two test cases:

1. "Array from - Set": This test case compares the performance of using `Array.from()` and `Set()` to process an array of unique coordinates.
2. "For loops": This test case compares the performance of using for loops to process an array of unique coordinates.

**Options Compared:**

The two options being compared are:

1. Using `Array.from()` and `Set()` with the `reduce()` function
2. Using for loops to process the array

**Pros and Cons:**

* **Using `Array.from()` and `Set()`**: This approach is concise, readable, and efficient. It uses modern JavaScript features that are widely supported by browsers.
	+ Pros:
		- Concise code
		- Efficient
	+ Cons:
		- May not be compatible with older browsers or JavaScript engines
* **For Loops**: This approach is traditional and widely understood, but it can be verbose and less efficient than the `Array.from()` and `Set()` approach.
	+ Pros:
		- Widely supported by older browsers and JavaScript engines
		- Easy to understand for beginners
	+ Cons:
		- More verbose code
		- Less efficient

**Library/Functionality Used:**

None of the test cases use a library or external functionality.

**Special JS Feature/Syntax:**

The `Array.from()` function is a modern JavaScript feature that was introduced in ECMAScript 2015 (ES6). It uses the spread operator (`...`) to create a new array from an iterable source.

**Other Alternatives:**

If you want to compare other approaches for processing unique coordinates, some alternatives could be:

1. Using `Map()` instead of `Set()`
2. Using `JSON.stringify()` and `JSON.parse()` to process the coordinates
3. Using regular expressions to remove duplicates

Keep in mind that these alternatives may have different performance characteristics and trade-offs.

**Benchmark Preparation Code:**

The provided script preparation code is a simple array generator that creates an array of unique coordinates using the specified method.

**Html Preparation Code:**

There is no HTML preparation code provided, as this benchmark only tests JavaScript code.

Related benchmarks:

unique coordinates (version: 0)

Comparing performance of: Array from - Set vs For loops

Created: 8 years ago by: Guest

Jump to the latest result

Array from - Set

For loops

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):