Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Pop vs Splice
(version: 0)
Comparing performance of:
splice vs pop
Created:
3 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var list = []; for(var i = 0; i < 200000; i++) list.push(i);
Tests:
splice
while(list.length > 0) { list.splice(-1); }
pop
while(list.length > 0) { list.pop(); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
splice
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 components. **Benchmark Overview** The provided JSON represents a JavaScript microbenchmark that tests the performance of two different approaches for removing elements from an array: `splice()` and `pop()`. The benchmark is designed to push 200,000 elements onto an empty array, simulate the removal of each element using either `splice()` or `pop()`, and measure the execution time. **Options Compared** The two options compared are: 1. **`splice(-1)`**: This approach removes the last element from the array using the `splice()` method with a negative index (`-1`). The `-1` index is used to remove the last element. 2. **`pop()`**: This approach uses the built-in `pop()` method, which removes and returns the last element of an array. **Pros and Cons** * **`splice(-1)`**: + Pros: More control over the removal process, can be useful for modifying arrays in place. + Cons: Can lead to unnecessary work if the array is modified frequently (e.g., adding or removing elements), as it requires re-iterating over the entire array to find the last element. In contrast, `pop()` only removes and returns the last element without re-iterating over the array. * **`pop()`**: + Pros: More efficient for removing the last element from an array, as it avoids unnecessary work. + Cons: Requires accessing the last element of the array, which can lead to slower performance if the array is not sorted or has a large number of elements. **Library and Special JavaScript Features** In this benchmark, no external libraries are used. The `pop()` method is a built-in JavaScript method that does not rely on any specific library or syntax. However, it's worth noting that some browsers may have optimized implementations of the `pop()` method, especially those with specialized garbage collection mechanisms (e.g., SpiderMonkey in Firefox). In such cases, the performance difference between `splice(-1)` and `pop()` might be negligible. **Other Alternatives** If you were to modify this benchmark to test other approaches for removing elements from an array, some alternatives could include: * Using a different data structure, such as a linked list or a binary search tree. * Comparing the performance of `splice()` with other methods, like `shift()`, `unshift()`, `indexOf()`, and `slice()`. * Adding additional tests for edge cases, such as removing elements from an array while iterating over it. Keep in mind that modifying the benchmark would require careful consideration of the trade-offs between different approaches and the potential impact on performance.
Related benchmarks:
splice twice VS shift + pop
splice vs push
Pop vs Splice [fast]
splice vs double pop
slice VS splice 1234567
Comments
Confirm delete:
Do you really want to delete benchmark?