Benchmark: float vs tofixed (kostian)

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>

Previous results

Test case name	Result
floor
toFixed

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of MeasureThat.net and explore what's being tested in this specific benchmark.

**Benchmark Definition**

The benchmark is designed to compare the performance of two approaches: using Lodash's `round()` function and JavaScript's native `toFixed()` method. The script preparation code initializes a random variable `x` with a value between 0 and 1. There are no additional HTML preparations, which means that only JavaScript execution time is being measured.

**Options Compared**

The two options being compared are:

1. **Lodash's `round()` function**: This function rounds a number to the nearest integer or to a specified number of decimal places.
2. **JavaScript's native `toFixed()` method**: This method formats a number as a fixed-point notation with a specified number of decimal places.

**Pros and Cons**

* Using Lodash's `round()` function:
	+ Pros: May be more readable and maintainable, especially for complex rounding logic.
	+ Cons: Adds an external library dependency, which may impact performance due to additional overhead.
* Using JavaScript's native `toFixed()` method:
	+ Pros: No external library dependency, potentially faster execution time.
	+ Cons: May require more code to achieve the desired rounding behavior.

**Library**

In this benchmark, Lodash is being used as a third-party library. Lodash provides a set of utility functions that can make code more concise and readable. In this case, the `round()` function is being used to round the value of `x`.

**Special JS Features or Syntax**

There are no special JavaScript features or syntaxes being tested in this benchmark.

**Other Considerations**

When writing benchmarks like this one, it's essential to consider factors such as:

* **Cache effects**: Is the output of each test case cached, potentially affecting performance?
* **Garbage collection**: Does the benchmark allocate memory unnecessarily, impacting garbage collection overhead?
* **Browser and platform variations**: Are different browsers or platforms being tested, which may introduce variations in execution time?

**Alternatives**

If you want to create a similar benchmark, consider using:

1. Built-in JavaScript functions like `Math.round()` or `Number.EPSILON`.
2. Other libraries that offer rounding functionality, such as Moment.js.
3. Browser-specific benchmarks that take into account unique characteristics of each browser.

By understanding the options being compared and considering additional factors, you can create more informative and realistic benchmarks that accurately reflect real-world performance scenarios.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36

Browser/OS: Chrome 88 on Windows

View result in a separate tab

Test name	Executions per second
floor	4055.1 Ops/sec
toFixed	3372.4 Ops/sec

Related benchmarks:

float vs tofixed (kostian) (version: 0)

Compare round lodash function vs javascript native toFixed() function

Comparing performance of: floor vs toFixed

Created: 3 years ago by: Guest

Jump to the latest result

floor

toFixed

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):