Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
bnchmarkk
(version: 0)
Comparing performance of:
testbst vs testbrute
Created:
4 years ago
by:
Guest
Jump to the latest result
Tests:
testbst
function findSum(arr,value){ let idx1 = 0 let idx2 = arr.length - 1 arr.sort((a,b) => a-b) while(idx2 != idx1){ console.log(idx2,idx1) if (arr[idx2] + arr[idx1] > value){ idx2-- } else if (arr[idx2] + arr[idx1] < value) { idx1++ } else { return [arr[idx2],arr[idx1]] } } return false } findSum([1,21,3,14,5,60,7,6],81)
testbrute
function findSum(arr,value){ for (let val of arr){ if (arr.includes(value - val)) return [val,value-val] } return false } findSum([1,21,3,14,5,60,7,6],81)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
testbst
testbrute
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided JSON represents two benchmark definitions, each with its own script preparation code and HTML preparation code. **Benchmark Definitions** There are two benchmark definitions: 1. `findSum(arr,value)` This function finds the pair of elements in an array that sum up to a given value. It uses a sorting approach with two pointers (idx1 and idx2) starting from opposite ends of the sorted array. If the sum is greater than the target value, it moves the pointer at the larger element towards the smaller end. If the sum is less than the target value, it moves the pointer at the smaller element towards the larger end. If the sum equals the target value, it returns the pair of elements. 2. `findSum(arr,value)` This function finds the pair of elements in an array that sum up to a given value using a brute force approach. It iterates through each element in the array and checks if the difference between the current element and the target value minus the current element is present in the array. If found, it returns the pair of elements. **Options Compared** The two benchmark definitions compare different approaches: * **Sorting-based approach**: This method has an average time complexity of O(n log n) due to the sorting step. * **Brute force approach**: This method has a time complexity of O(n^2), as it checks every possible pair of elements in the array. **Pros and Cons** * **Sorting-based approach**: + Pros: Generally faster for large arrays, especially when using efficient sorting algorithms like quicksort or mergesort. + Cons: Requires extra memory to store the sorted array, and may perform poorly if the input array is already sorted or nearly sorted. * **Brute force approach**: + Pros: Simple and easy to implement, with minimal overhead. + Cons: Slower for large arrays due to the quadratic time complexity. **Library Usage** The `includes()` method is used in the brute force approach, which is a built-in JavaScript method that checks if an element exists in an array. **Special JS Features/Syntax** There are no special JS features or syntax used in these benchmark definitions. They use standard JavaScript functions and data structures like arrays and loops. **Other Alternatives** If you wanted to optimize the brute force approach, you could consider using a more efficient algorithm like the two-pointer technique (similar to the sorting-based approach), or using a data structure like a hash table to store the array elements for faster lookups. Alternatively, you could use a pre-computed lookup table to avoid redundant calculations. It's worth noting that MeasureThat.net is a microbenchmarking platform, which means it's designed to measure the performance of small code snippets in isolation. The results should be taken as indicative of the general behavior of each approach, rather than a comprehensive analysis of their performance in all scenarios.
Related benchmarks:
testje
Benchmark b62c8ffd-0b9f-4f90-a558-4539bdf7335c
Ga cookie grabber . 2
test dv vs fm real
fjdfjdu34uerh
Comments
Confirm delete:
Do you really want to delete benchmark?