Benchmark: Floor Vs parseInt

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>

Previous results

Test case name	Result
parseInt
Math.floor

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0

Browser/OS: Firefox 99 on Linux

View result in a separate tab

Test name	Executions per second
parseInt	62734.8 Ops/sec
Math.floor	58998.7 Ops/sec

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

LLMs can make mistakes. Check important info.

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.

Related benchmarks:

Floor Vs parseInt (version: 0)

Comparing performance of: parseInt vs Math.floor

Created: 2 years ago by: Guest

Jump to the latest result

parseInt

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):