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float vs tofixed
(version: 0)
Compare round lodash function vs javascript native toFixed() function
Comparing performance of:
floor vs toFixed
Created:
5 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var x = Math.random();
Tests:
floor
for (var i = 0; i < 1000; i++) { Math.floor(x) }
toFixed
for (var i = 0; i < 1000; i++) { x.toFixed(); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
floor
toFixed
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** The provided benchmark definition json represents a test case that compares two approaches to round numbers in JavaScript: using Lodash's `round` function and JavaScript's native `toFixed` method. The test is designed to measure which approach is faster for rounding a large number of values. **Script Preparation Code** Before running the benchmarks, the script preparation code generates a random value `x` using `Math.random()`. This ensures that both tests start with the same initial value and eliminates any potential bias towards one implementation over the other. **Html Preparation Code** The HTML preparation code includes a reference to Lodash's minified JavaScript file (`lodash.min.js`) via a CDN. This allows users to easily integrate Lodash into their testing environment. **Individual Test Cases** There are two test cases: 1. **floor**: This test case measures the time it takes to round a large number of values using `Math.floor`. The `for` loop iterates 1000 times, and each iteration performs `Math.floor(x)`. 2. **toFixed**: This test case measures the time it takes to round a large number of values using JavaScript's native `toFixed` method. Again, the `for` loop iterates 1000 times, and each iteration performs `x.toFixed()`. **Pros and Cons** * **Lodash's round function**: * Pros: Lodash's `round` function is a more readable and maintainable way to round numbers. It also provides more control over the rounding behavior. * Cons: Using an external library may introduce additional overhead due to parsing and serialization, which can affect performance in microbenchmarking scenarios. * **JavaScript's native toFixed method**: * Pros: The `toFixed` method is a built-in JavaScript function that requires no extra libraries or processing. This makes it potentially faster for very large numbers of iterations. * Cons: Using the `toFixed` method can be less readable and more error-prone than using Lodash's `round` function. **Library - Lodash** Lodash is a popular utility library for JavaScript that provides a wide range of functions for tasks such as string manipulation, array operations, and more. In this case, Lodash's `round` function is used to round numbers. The library is designed to be lightweight and efficient, making it suitable for use in microbenchmarking scenarios. **Special JS Feature - none** There are no special JavaScript features or syntaxes being tested in this benchmark. The focus is on comparing the performance of two rounding approaches using simple arithmetic operations. **Alternatives** If you want to explore alternative ways to round numbers in JavaScript, here are a few options: * Using a library like [mathjs](https://github.com/josdejong/mathjs) which provides more advanced mathematical functions. * Implementing custom rounding logic using bitwise operators or arithmetic expressions. * Using a different data type, such as `Int32Array` or `Float64Array`, to perform the rounding operation. Keep in mind that these alternatives may not provide significant performance improvements over the native `toFixed` method for small-scale applications.
Related benchmarks:
lodash.round VS toFixed() VS toFixed() and parseFloat
lodash.round VS toFixed() VS parseFloat().toFixed()
float vs tofixed (kostian)
lodash.round VS Math.round (divide by 0)
lodash.round VS Math.round with precision
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