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stack test recursion
(version: 0)
Comparing performance of:
recursion return recursion vs recursion return null
Created:
9 years ago
by:
Guest
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Tests:
recursion return recursion
x = function (n){ n++; if (n < 10000){return x(n);}; } x(0);
recursion return null
x = function (n){ n++; if (n < 10000){x(n); return null;}; } x(0);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
recursion return recursion
recursion return null
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **What is being tested?** The provided benchmark tests two different approaches to recursive function calls in JavaScript: 1. **Recursive return with value**: The first test case, "recursion return recursion", tests a recursive function that returns a value. In this case, the function increments the input `n` and checks if it's less than 10,000. If so, it calls itself recursively with `n+1`. Finally, it returns the value of the call. 2. **Recursive return with null**: The second test case, "recursion return null", tests a recursive function that also increments the input `n` and checks if it's less than 10,000. However, instead of returning the result, it calls itself recursively with `n+1` and returns `null`. **Comparison of options** There are two main approaches being compared: * **Value return**: This approach involves calling the recursive function and waiting for its result. In this case, both test cases use this approach. * **Early exit**: The first test case uses early exit by returning immediately after incrementing `n` if it's less than 10,000. This can potentially speed up the execution of the recursive calls. **Pros and cons** * **Value return**: + Pros: Easy to understand and implement, avoids potential issues with null or undefined returns. + Cons: Can lead to increased stack sizes and slower performance due to repeated function calls. * **Early exit**: + Pros: Potentially faster execution by avoiding unnecessary recursive calls. + Cons: Requires careful consideration of the base case to avoid infinite recursion. **Library usage** None of the provided benchmark test cases use any external libraries. However, MeasureThat.net itself is a JavaScript library that provides the benchmarking functionality. **Special JS features or syntax** There are no special JavaScript features or syntax being tested in these two test cases. The focus is on the recursive function implementation and its optimization. **Other alternatives** Other approaches to optimizing recursive functions might include: * **Memoization**: Storing and reusing previously computed results to avoid redundant calculations. * **Tail recursion**: Optimizing recursive calls by avoiding the need for a stack frame. * **Iterative implementations**: Converting recursive functions to iterative ones using loops instead of recursive calls. Keep in mind that each approach has its own trade-offs, and the best choice depends on the specific use case and performance requirements.
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