Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
For vs while
(version: 0)
Comparing performance of:
For vs While vs Do while
Created:
5 years ago
by:
Guest
Jump to the latest result
Tests:
For
for (let i = 0; i < 10000; i++) { console.log(i); }
While
let i = 0; while (i < 10000) { console.log(i); i++; }
Do while
let i = 0; do { console.log(i); i++; } while (i < 10000);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
For
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):
Let's dive into the explanation of what is tested on the provided JSON. **What is being tested?** The benchmark is comparing three different approaches to iterate over a range of numbers in JavaScript: 1. **For loop**: A traditional `for` loop that uses a counter variable (`i`) and increments it manually. 2. **While loop**: A `while` loop that checks the condition (`i < 10000`) and increments the counter variable (`i`) inside the loop body. 3. **Do-while loop**: A `do-while` loop that executes the loop body first and then checks the condition (`i < 10000`). **Options being compared** The three approaches are compared in terms of: * **Performance**: The number of executions per second (ExecutionsPerSecond) is measured to determine which approach is faster. * **Code complexity**: The simplicity and readability of each loop syntax are considered. **Pros and cons of each approach** 1. **For loop**: * Pros: Easy to read, understand, and maintain. No unnecessary checks or conditions. * Cons: Requires manual incrementation of the counter variable, which can lead to off-by-one errors. 2. **While loop**: * Pros: More flexible than `for` loops, as it allows for variable iterations (e.g., using an array). * Cons: Can be less readable due to the conditional check inside the loop body. 3. **Do-while loop**: * Pros: Similar to `for` loops in terms of readability and understanding, but with a more explicit condition check at the end. * Cons: Less commonly used than `for` and `while` loops, which can make it harder to find resources and community support. **Library usage** There is no specific library mentioned in the provided JSON. However, if you're interested in exploring libraries for benchmarking JavaScript performance, some popular options include: * **Benchmark.js**: A lightweight, modular benchmarking library that provides a simple API for running benchmarks. * **Fast bench**: A fast and efficient benchmarking library designed specifically for Node.js environments. **Special JS features or syntax** None of the provided JSON mentions any special JS features or syntax. However, if you're interested in exploring advanced topics, some notable examples include: * **Closures**: Functions that can access and modify their own scope and outer scope variables. * **Promises**: A way to handle asynchronous operations and manage expectations for a sequence of steps. **Other alternatives** If you're looking for alternative benchmarking tools or approaches, consider the following options: * **Node.js built-in `performance` API**: Node.js provides an `performance` module that allows you to measure performance metrics, including CPU cycles, memory usage, and execution time. * **JavaScript profiling tools**: Tools like Chrome DevTools, Firefox Developer Edition, or Node.js Inspector provide detailed insights into your code's execution flow, resource allocation, and performance bottlenecks. Keep in mind that the choice of benchmarking tool or approach depends on your specific use case, requirements, and expertise level.
Related benchmarks:
Array loop: forEach vs for vs map vs for of entries
For vs Foreach vs Do While vs While
for vs while vs for of vs forEach4
For vs Foreach vs Do While vs While v3
For vs Foreach vs While
Comments
Confirm delete:
Do you really want to delete benchmark?