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If vs Switch
(version: 0)
Comparing performance of:
ifTest1 vs ifTest2 vs ifTest3 vs switchTest1 vs switchTest2 vs switchTest3
Created:
8 years ago
by:
Guest
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Tests:
ifTest1
function ifTest1() { if(value === 'Rejected' || value === 'Cancelled'){ return true; } }
ifTest2
function ifTest2() { if(value === 'Blue' || value === 'Red') { return false; } if(value === 'Rejected' || value === 'Cancelled'){ return true; } }
ifTest3
function ifTest3() { if(value === 'Rejected' || value === 'Cancelled'){ return true; } if(value === 'Blue' || value === 'Red') { return false; } }
switchTest1
function switchTest1() { switch(value) { case 'Rejected': return true; case 'Cancelled': return true; } }
switchTest2
function switchTest2() { switch(value) { case 'Rejected': return true; case 'Cancelled': return true; default: return false; } }
switchTest3
function switchTest3() { switch(value) { case 'Rejected': return true; case 'Blue': return false; case 'Red': return false; case 'Cancelled': return true; default: return false; } }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (6)
Previous results
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Test case name
Result
ifTest1
ifTest2
ifTest3
switchTest1
switchTest2
switchTest3
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks! **Benchmark Definition** The provided JSON represents a benchmark definition, which defines two types of conditional statements: `if` and `switch`. The benchmark aims to measure the performance difference between these two constructs. **Options Compared** In this benchmark, we have four test cases: 1. `ifTest1`: A simple `if` statement with only one condition (`value === 'Rejected' || value === 'Cancelled'`). 2. `ifTest2`: An `if` statement with multiple conditions (two) and a nested `if` statement. 3. `ifTest3`: Similar to `ifTest1`, but the conditions are in reverse order. 4. `switchTest1`: A `switch` statement with two cases (`'Rejected'` and `'Cancelled'`) that return true. 5. `switchTest2`: A `switch` statement with three cases, including a default case that returns false. 6. `switchTest3`: A `switch` statement with multiple conditions, similar to the previous ones. **Pros and Cons of Each Approach** 1. **if**: Simple and straightforward, but can be slower due to the overhead of evaluating the condition. * Pros: Easy to understand and write, no special syntax required. * Cons: May not be as efficient as other options. 2. **switch**: Can be faster for certain use cases, especially when dealing with multiple conditions that return true. * Pros: Faster than `if` for some scenarios, easier to read for complex logic. * Cons: Requires special syntax and can be more error-prone if not used correctly. **Library Usage** There is no library mentioned in the provided JSON. The benchmark only uses built-in JavaScript constructs: `if`, `switch`. **Special JS Features/Syntax** None of the test cases use any special JavaScript features or syntax, such as async/await, promises, or arrow functions. **Other Alternatives** If we were to extend this benchmark to include more options, we could consider adding: * **Ternary operator**: A concise way to write simple conditional statements. * **Logical operators** (e.g., `&&`, `||`, `?`): Can be used to simplify certain conditions. * **Regex**: Could be used to match complex patterns in the input data. However, these alternatives would require additional modifications to the benchmark definition and test cases to accurately measure their performance impact.
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