Benchmark: Double tilde vs Math.floor

Tests:

~~
~~10.12345
Math.floor
Math.floor(10.12345)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
~~
Math.floor

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 11 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Windows

View result in a separate tab

Test name	Executions per second
~~	64746372.0 Ops/sec
Math.floor	54606164.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Measuring the performance of JavaScript operations is crucial in ensuring that our code runs efficiently on different platforms and browsers. MeasuringThat.net provides a platform for developers to create and run microbenchmarks.

Let's break down the provided JSON data:

**Benchmark Definition**

The benchmark definition represents the operation being tested. In this case, there are two test cases:

1. `~~10.12345`: This is a JavaScript "tilde" operator, which returns the string representation of its operand without any decimal part (e.g., `~~10.12345` would return `"10"`). The tilde operator is used to convert floating-point numbers to integers.
2. `Math.floor(10.12345)`: This uses the built-in `Math.floor()` function, which returns the largest integer less than or equal to its argument.

**Options Compared**

The options being compared are:

1. Tilde (`~~`) operator
2. `Math.floor()`

Each of these approaches has its pros and cons:

* **Tilde (`~~`) operator:**
	+ Pros:
		- Simple and concise syntax.
		- Fast, as it's a built-in operation.
	+ Cons:
		- May not work correctly for negative numbers or non-integer values (e.g., `~~-10.12345` returns `-11`, but `Math.floor(-10.12345)` returns `-11`).
		- May not be supported in older browsers or environments that don't implement this operator.
* **`Math.floor()`**:
	+ Pros:
		- Robust and reliable, as it's a well-defined function with clear behavior for various input types.
		- Widely supported across different browsers and environments.
	+ Cons:
		- More verbose syntax compared to the tilde operator.

**Library and Purpose**

In this benchmark, there is no explicit library mentioned. However, both options use built-in JavaScript functions: `~~` (not a standard function; it's more of an operator) and `Math.floor()`.

**Special JS Feature or Syntax**

There are no special features or syntaxes being used in these test cases.

**Other Alternatives**

To measure the performance of the tilde (`~~`) operator, developers might consider using other approaches:

1. Using a library that implements this operator (although it's not explicitly mentioned here).
2. Writing a custom function to simulate the behavior of the tilde operator.

For `Math.floor()`, alternative methods could be:

1. Implementing your own rounding algorithm.
2. Using a library with an optimized version of the `Math.floor()` function.

**Alternative Benchmarking Tools and Resources**

Other alternatives for benchmarking JavaScript performance include:

1. WebpageTest (now known as GTmetrix): A popular tool for measuring web page load times and performance.
2. BrowserStack: Provides a cloud-based testing platform for cross-browser testing, including JavaScript performance benchmarks.
3. jsPerf: A built-in browser feature that allows developers to create and run JavaScript performance tests.
4. Microbenchmarking libraries like micro-benchmark (npm package) or benchmark.js (GitHub repository).

These tools can help you compare the performance of different JavaScript operations and identify potential bottlenecks in your code.

Related benchmarks:

Double tilde vs Math.floor (version: 0)

Comparing performance of: ~~ vs Math.floor

Created: 3 years ago by: Guest

Jump to the latest result

~~

Math.floor

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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