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sto test
(version: 0)
Comparing performance of:
old school vs one method
Created:
4 years ago
by:
Guest
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Script Preparation code:
var capPdvFill ="a"
Tests:
old school
while(capPdvFill.length < 5) { capPdvFill = '0' + capPdvFill; } console.log(capPdvFill);
one method
console.log(capPdvFill.padStart(5, '0'));
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
old school
one method
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help you understand the JavaScript benchmark on MeasureThat.net. **What is being tested?** The benchmark measures how quickly JavaScript code can execute and produce the desired output. In this case, we have two test cases: 1. "old school": This test case uses a while loop to incrementally pad a string with zeros until it reaches 5 characters. 2. "one method": This test case uses the `padStart()` method to pad a string with zeros on one side. **Options being compared** The benchmark compares two approaches: 1. **Manual increment**: The "old school" approach, which uses a while loop to manually incrementally pad the string with zeros. 2. **Method call**: The "one method" approach, which uses the `padStart()` method provided by JavaScript's String prototype. **Pros and cons of each approach** 1. **Manual increment**: * Pros: Can be more efficient for small strings or specific use cases where control is needed. * Cons: Requires manual loop management, can be error-prone, and may not scale well for larger inputs. 2. **Method call**: * Pros: More concise and readable, leverages built-in functionality, and often faster due to optimized implementation. * Cons: May require additional dependencies (in this case, the `padStart()` method is part of the String prototype), and may not be as flexible for custom use cases. **Library usage** The test cases do not explicitly mention a specific library, but they rely on built-in JavaScript functionality: 1. The "old school" approach uses the `while` loop and basic arithmetic operators. 2. The "one method" approach leverages the `padStart()` method provided by the String prototype. **Special JS features or syntax** This benchmark does not require any special JavaScript features or syntax beyond what is typically supported in modern browsers. **Other alternatives** If you wanted to write a similar benchmark, you might consider other approaches: 1. **Regular expressions**: Using regular expressions to pad a string can be more concise and flexible than manual increment. 2. **Template literals**: Modern JavaScript provides template literals (backticks) as a convenient way to concatenate strings with formatting options. In summary, the "old school" approach requires manual loop management, while the "one method" approach leverages built-in functionality for efficiency. Both approaches have their pros and cons, and the choice ultimately depends on your specific use case requirements.
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