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Selective sorting with splice() & unshift() vs sort()
(version: 0)
Comparing performance of:
splice() & unshift() vs sort()
Created:
2 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var sample = [...Array(10000)].map((_,i) => i)
Tests:
splice() & unshift()
let arr = [...sample] arr.forEach((item, i) => { if(item % 3 == 0){ arr.splice(i, 1) arr.unshift(item) } })
sort()
let arr = [...sample] arr.sort((i) => (i % 3 == 0) ? -1 : 0)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
splice() & unshift()
sort()
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark definition and test cases. **Benchmark Definition** The website MeasureThat.net uses a JSON object to define a benchmark, which includes: * `Name`: A unique name for the benchmark (in this case, "Selective sorting with splice() & unshift() vs sort()") * `Description`: An optional description of the benchmark * `Script Preparation Code` and `Html Preparation Code`: These are code snippets that are executed before running the actual benchmark. In this case, they both prepare an array (`sample`) with 10,000 elements. **Individual Test Cases** There are two test cases defined: 1. **splice() & unshift()** * The benchmark definition is a JavaScript function that: + Creates an array `arr` from the `sample` array + Loops through each element in the array using `forEach` + For each element, checks if it's divisible by 3 (using modulo `%`) + If it is, removes the current element from its original position using `splice()`, and then adds it to the beginning of the array using `unshift()` 2. **sort()** * The benchmark definition is a JavaScript function that: + Creates an array `arr` from the `sample` array + Uses the `sort()` method with a custom comparison function to sort the array based on whether each element is divisible by 3 **Comparison of Approaches** Both approaches aim to select elements from the original array and add them to the beginning of the new array. However, they differ in how they achieve this: * **splice() & unshift()**: This approach modifies the original array while adding elements to its head. It's a more efficient way to insert elements at specific positions because it only involves updating pointers. * **sort()**: This approach creates a new sorted array and copies elements from the original array into it, which can be less efficient than modifying the original array. **Pros and Cons of Each Approach** * **splice() & unshift()**: + Pros: More efficient for inserting elements at specific positions + Cons: May modify the original array (which could lead to unexpected behavior if not expected) * **sort()**: + Pros: Easier to understand and implement, as it uses a standard sorting algorithm + Cons: Less efficient for inserting elements at specific positions **Library Usage** There doesn't seem to be any library usage in the benchmark definition. **Special JS Feature or Syntax** Neither of the test cases utilizes any special JavaScript features or syntax that would require additional explanation. **Other Alternatives** If you need to implement a similar sorting algorithm, other alternatives could include: * Using a more efficient sorting algorithm like quicksort or mergesort * Implementing insertion sort or bucket sort * Using a data structure like a balanced binary search tree Keep in mind that the choice of implementation will depend on the specific requirements and constraints of your use case. I hope this explanation helps!
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