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mod vs if v2
(version: 0)
Comparing performance of:
Mod vs if
Created:
5 years ago
by:
Guest
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HTML Preparation code:
<!DOCTYPE html> <html> <body> <h1>My First Web Page</h1> <p>My First Paragraph</p> <p id="demo"></p> <script> document.getElementById("demo").innerHTML = 5 + 6; </script> </body> </html>
Tests:
Mod
var INDEX = 0; var row; var col; while(INDEX <= 15){ row = (INDEX % 4) + 1; col = Math.trunc(INDEX / 4) + 1; INDEX += 1; }
if
var INDEX = 1; var row = 1; var col = 1; while(INDEX <= 15){ if (INDEX == 5 || INDEX == 9 || INDEX == 13){ row += 1; col = 1; } else{ col += 1; } INDEX += 1; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
Mod
if
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 on MeasureThat.net. **Benchmark Definition and Script Preparation Code** The benchmark definition is a JSON object that describes two test cases, `mod` and `if`, which are identical except for how they handle certain conditions within a while loop. The script preparation code provides a basic HTML structure with an empty `<p>` element that will be updated with the result of the JavaScript calculation. In this case, there's no specific library or special JS feature being used in the benchmark definition itself. However, the `Math.trunc` function is part of the standard JavaScript Math object, which is not specifically mentioned as a special syntax in the provided information. **Options Compared** The two options being compared are: 1. **Mod**: This option uses a modulo (`%`) operator to determine the row and column values within the while loop. 2. **if**: This option uses an `if` statement to check for specific conditions within the while loop, which affects the increment of both the row and column variables. **Pros and Cons** * **Mod**: + Pros: Simple and concise code; easy to understand and maintain. + Cons: May be less efficient due to repeated calculations or unnecessary condition checks. * **if**: + Pros: Can lead to more efficient execution if certain conditions are met, potentially reducing overhead. + Cons: More complex code with conditional statements may increase maintenance costs. **Library and Purpose** In this case, there is no explicitly mentioned library being used in the benchmark definition. However, `Math.trunc` is a built-in function provided by the JavaScript Math object, which is not specific to MeasureThat.net but rather part of the standard JavaScript language. **Special JS Feature or Syntax** There's no special JS feature or syntax being used in this benchmark definition that would require additional explanation. **Other Alternatives** For similar types of benchmarks, you might consider: * Using a loop unrolling technique for comparison, where the loop is iterated more times than necessary to compare performance differences. * Introducing additional variables or data structures to increase complexity and see how they affect performance. * Using different JavaScript engines (e.g., V8, SpiderMonkey) to compare performance differences on various platforms. Keep in mind that these alternatives would require modifications to the benchmark definition and script preparation code.
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