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Floor Vs parseInt
(version: 0)
Comparing performance of:
parseInt vs Math.floor
Created:
4 years ago
by:
Guest
Jump to the latest result
Tests:
parseInt
console.log('myclientid_' + parseInt('' + Math.random() * 100, 10))
Math.floor
console.log('myclientid_' + Math.floor('' + Math.random() * 100))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
parseInt
Math.floor
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 break down the JavaScript microbenchmark on MeasureThat.net. **Benchmark Definition** The benchmark is defined by two test cases: 1. `parseInt` 2. `Math.floor` These two functions are being compared to determine which one performs better in terms of execution speed. **Options Compared** In this benchmark, only two options are being compared: `parseInt` and `Math.floor`. Both functions take an integer value as input and return the same result type (number). **Pros and Cons of Each Approach** 1. **parseInt** * Pros: + More flexible, as it can handle string inputs that represent integers in different bases (e.g., hexadecimal). + Can be used to extract numeric values from strings. * Cons: + May be slower due to the overhead of parsing the input string. 2. **Math.floor** * Pros: + Generally faster, as it is a built-in function with optimized implementation. + More predictable results, as it always returns an integer value. **Library Usage** None of the test cases explicitly use any JavaScript libraries. However, `parseInt` is a built-in function in JavaScript, while `Math.floor` is also a built-in function provided by the Math object. **Special JS Feature or Syntax** There are no special JavaScript features or syntax used in this benchmark. **Other Alternatives** If you need to compare other functions for extracting integer values from strings, some alternatives could be: * Using regular expressions (e.g., `\d+` to match one or more digits) * Implementing a custom parser function * Using a library like Moment.js or Datepicker.js (although this would likely introduce additional overhead) In general, when benchmarking JavaScript functions, it's essential to consider factors such as: * Input data distribution and size * Function implementation and optimization * Browser and platform variations * Number of test runs and executions By considering these factors and using a robust testing framework like MeasureThat.net, you can gain insights into the performance characteristics of your code and make informed decisions about optimization and trade-offs.
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