Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
toFixed vs Math.round()12
(version: 0)
Comparing performance of:
toFixed(0) vs Math.round
Created:
5 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var someFloat = 12313.123456789;
Tests:
toFixed(0)
someFloat.toFixed(0);
Math.round
Math.round(someFloat)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
toFixed(0)
Math.round
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down what's being tested in this JavaScript microbenchmark. **Benchmark Purpose** The primary goal of this benchmark is to compare the performance of two rounding functions: `toFixed()` and `Math.round()`. Specifically, it measures how long each function takes to execute on a given input value (`someFloat`). **Options Compared** Two options are being compared: 1. **`toFixed(0)`**: This uses the `toFixed()` method with an argument of 0. The `toFixed()` method returns a string representation of the number, rounded to the specified number of decimal places. By passing 0 as the argument, it effectively rounds to the nearest integer. 2. **`Math.round()`**: This uses the built-in `Math.round()` function, which returns the closest integer to the input value. **Pros and Cons** * **`toFixed(0)`**: + Pros: Can be useful when you need to display a number with a fixed number of decimal places. + Cons: May lead to precision issues if not used carefully. Additionally, it's slower than `Math.round()` due to the overhead of creating a string representation. * **`Math.round()`**: + Pros: Faster and more precise than `toFixed(0)`. It's also more widely supported across browsers. + Cons: May lead to rounding errors if not used carefully. **Library/Additional Features** None are explicitly mentioned in the benchmark definition. However, it's worth noting that the `toFixed()` method is a built-in JavaScript function, while `Math.round()` is also a built-in function. **Special JS Feature/Syntax** There isn't any special JavaScript feature or syntax being used in this benchmark. It's purely a basic comparison of two rounding functions. **Other Alternatives** If you wanted to test alternative rounding functions, some other options could include: * `Number.EPSILON` (a small value that can be used to compare floating-point numbers) * `Big.js` or `Decimal.js` libraries for precise decimal arithmetic * `Intl.NumberFormat()` API for formatting numbers with a specific locale and options Keep in mind that these alternatives might not provide the exact same functionality as `toFixed()` and `Math.round()`, but they can offer different trade-offs in terms of precision, speed, or features. For this particular benchmark, it's likely that the focus is on comparing the basic performance of `toFixed(0)` and `Math.round()`, rather than exploring more advanced alternatives.
Related benchmarks:
toFixed vs Math.round() - result as a number
toFixed vs toPrecision vs Math.round() to 1 decimal place
toFixed vs toPrecision vs Math.round() asd
toFixed vs Math.round() with numbers
Comments
Confirm delete:
Do you really want to delete benchmark?