Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
while vs do while
(version: 0)
Comparing performance of:
while vs do while
Created:
2 years ago
by:
Guest
Jump to the latest result
Tests:
while
let maxRuns = 1000; while(maxRuns > 0) { const blah = 1; maxRuns -= 1; }
do while
let maxRuns = 1000; do { maxRuns -= 1; const blah = 1; } while (maxRuns > 0);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
while
do while
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 help explain the provided benchmark. **Overview** The benchmark is designed to compare the performance of two different loops: `while` and `do-while`. The test creates 10,000 iterations of each loop, and measures how many executions per second are achieved by each browser on a desktop device running Windows 10. **Options Compared** There are only two options being compared: 1. **While Loop**: A traditional `while` loop that checks the condition at the beginning of each iteration. 2. **Do-While Loop**: A `do-while` loop that executes the body of the loop once, and then checks the condition before executing the next iteration. **Pros and Cons** **While Loop** Pros: * Easy to read and understand * Allows for more control over the loop's behavior Cons: * Can lead to inefficient use of CPU resources if the condition is checked frequently * May cause unnecessary iterations if the condition is false **Do-While Loop** Pros: * Ensures that the body of the loop is executed at least once * Can improve performance in some cases, since the condition is only checked after the first iteration Cons: * Can make the code harder to read and understand for beginners * May lead to unexpected behavior if the initial condition is false **Library** In this benchmark, no external libraries are being used. The test only involves vanilla JavaScript. **Special JS Features or Syntax** There are no special features or syntax in this benchmark that would require additional explanation. **Other Considerations** When writing loops like these, it's essential to consider the following: * Avoid using `while` loops when possible, as they can lead to unnecessary iterations. * Use `do-while` loops only when necessary, and make sure to understand their behavior. * Always profile and test your code to determine which approach is best for a specific use case. **Alternatives** Other alternatives for comparing loop performance might include: * **For Loops**: While not directly comparable to `while` and `do-while` loops, `for` loops can also be used to execute iterations. However, this benchmark focuses on the difference between two types of loops. * **Loop Unrolling**: This technique involves unrolling the loop to reduce the number of iterations. However, it may not be as relevant in modern JavaScript engines that optimize loop performance. * **Loop Parallelization**: Some modern browsers and frameworks support parallelizing loops to take advantage of multi-core processors. However, this feature is not included in this benchmark. Keep in mind that these alternatives are outside the scope of this specific benchmark, which focuses on comparing `while` and `do-while` loops.
Related benchmarks:
For vs Foreach vs Do While vs While
Fastest iteration over array: map vs forEeach vs while vs for loop
While vs For loop vs For loop no plusplus
Do While vs For loop
For vs Foreach vs Do While vs While v3
Comments
Confirm delete:
Do you really want to delete benchmark?