Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Push & Shift vs Spread & Pop
(version: 0)
Compare usage of a sorted todo list whether its better to have the next element at the end (pop) or at the beginning (shift) of the array
Comparing performance of:
Push & Shift vs Spread & Pop
Created:
3 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var todo = [ 3, 2 ]
Tests:
Push & Shift
var params = [ 8, 15, 12 ]; todo.push(...params); var next = todo.shift();
Spread & Pop
var params = [ 8, 15, 12 ]; todo = [ ...params, ...todo]; var next = todo.pop();
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Push & Shift
Spread & Pop
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):
I'd be happy to explain the benchmark and its options. **Benchmark Overview** The benchmark, named "Push & Shift vs Spread & Pop", compares two approaches for adding elements to an array while maintaining its sorted order: using `push` with a spread operator (`...`) or using `shift`. The goal is to determine which approach is more efficient. **Options Compared** There are two options being compared: 1. **Push & Shift**: This option uses the `push` method to add elements to the end of the array, and then uses the `shift` method to remove and return the first element from the sorted array. 2. **Spread & Pop**: This option uses the spread operator (`...`) to concatenate the new elements with the existing array, effectively adding them to the end while maintaining the sorted order, and then uses the `pop` method to remove and return the last element from the modified array. **Pros and Cons** Here are some pros and cons of each approach: **Push & Shift:** Pros: * Can be more efficient for small arrays since it only requires a single push operation. * Does not require modifying the original array. Cons: * Requires two operations (push and shift), which may incur additional overhead. * May cause unnecessary reordering of elements if the original array is already sorted. **Spread & Pop:** Pros: * Only requires one operation, making it potentially more efficient for large arrays. * Maintains the sorted order without reordering elements. Cons: * Requires an additional operation (concatenating with spread operator) and may incur overhead due to creating a new array. * May cause performance issues if the original array is very large. **Library/Functionality Used** In this benchmark, no libraries or custom functions are used. The JavaScript standard library provides all the necessary functionality for these operations. **Special JS Features/Syntax** There are no special JavaScript features or syntax used in this benchmark that would require additional explanation. **Other Considerations** When comparing performance, consider factors such as: * Array size: Larger arrays may favor the spread & pop approach due to reduced overhead from consecutive push operations. * Browser and hardware variations: Different browsers and hardware configurations can significantly impact performance results. * Cache effects: The order of elements in the array may affect cache locality, influencing performance. **Alternatives** Other alternatives for adding elements to an array while maintaining sorted order include: 1. Using `concat` instead of spread operator (`...`). While less efficient than spread operator due to creating a new array, it can still be faster than push & shift. 2. Implementing custom sorting algorithms (e.g., insertion sort) that don't rely on built-in array operations. 3. Using data structures like balanced binary search trees or heaps, which are optimized for efficient insertion and retrieval. Keep in mind that the best approach depends on specific requirements and constraints of your use case.
Related benchmarks:
Slice vs Pop and Shift
Slice vs Splice vs Shift for 1 item
Push Shift vs Pop Spread.
Slice vs Splice vs Shift 231
Empty array: Splice vs Shift vs Pop
Comments
Confirm delete:
Do you really want to delete benchmark?