Benchmark: String to number

Tests:

parseInt
parseInt("1")
parseFloat
parseFloat("1")
Math.floor
Math.floor("1")
ceil
Math.ceil("1")
Unary
+"1"
"1" * 1
"1" * 1

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
parseInt
parseFloat
Math.floor
ceil
Unary
"1" * 1

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15

Browser/OS: Safari 13 on Mac OS X 10.15.4

View result in a separate tab

Test name	Executions per second
parseInt	8022302.5 Ops/sec
parseFloat	8195233.0 Ops/sec
Math.floor	7640790.5 Ops/sec
ceil	7853104.5 Ops/sec
Unary	66544104.0 Ops/sec
"1" * 1	69720032.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested.

**Benchmark Definition**

The benchmark definition is a set of scripts that are used to test different aspects of JavaScript execution. The three tests in this case measure:

1. `parseInt` (parse an integer from a string)
2. `parseFloat` (parse a floating-point number from a string)
3. `Math.floor` (round down to the nearest integer)
4. `Math.ceil` (round up to the nearest integer)
5. Unary operator (`+` with a string)
6. Multiplication of a string with another value (`"1" * 1`)

**Options Compared**

The tests compare different ways of executing these operations:

* `parseInt` and `parseFloat`: These functions parse a string as an integer or float, respectively.
* `Math.floor` and `Math.ceil`: These built-in functions round down to the nearest integer and up to the nearest integer, respectively.
* Unary operator (`+` with a string): This tests how JavaScript handles arithmetic operations on strings.
* Multiplication of a string with another value (`"1" * 1`): This tests how JavaScript handles multiplication of strings with other values.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

* `parseInt`:
	+ Pros: Fast, simple to implement
	+ Cons: Can lead to incorrect results if the string is not a valid integer representation (e.g., "123abc")
* `parseFloat`:
	+ Pros: Similar to `parseInt`, but also handles decimal numbers correctly
	+ Cons: Still has limitations (e.g., NaN for non-numeric strings)
* `Math.floor` and `Math.ceil`:
	+ Pros: Robust, accurate results with minimal implementation effort
	+ Cons: Slower than simple arithmetic operations like `parseInt`
* Unary operator (`+` with a string):
	+ Pros: Simple to implement, reveals behavior when used as arithmetic operators
	+ Cons: Can lead to unexpected behavior or errors if not handled correctly
* Multiplication of a string with another value (`"1" * 1`):
	+ Pros: Useful for testing how JavaScript handles arithmetic operations on strings
	+ Cons: May reveal implementation details, but can be misleading without proper context

**Libraries and Special Features**

There are no external libraries mentioned in the provided code. The built-in `Math` object is used throughout the tests.

No special features or syntax are explicitly mentioned in the code, as they are not relevant to the basic arithmetic operations being tested.

**Alternatives**

Other alternatives for measuring JavaScript performance or testing specific aspects of the language might include:

* Using other benchmarking frameworks like V8.js or Google Benchmark
* Implementing custom microbenchmarks using Node.js or a similar environment
* Utilizing existing libraries or tools specifically designed for benchmarking JavaScript performance, such as Benchmark.js or js-benchmark

Keep in mind that these alternatives would require additional setup and configuration to ensure accurate results.

In summary, the provided JSON data measures the execution speed of basic arithmetic operations like `parseInt`, `parseFloat`, `Math.floor`, `Math.ceil`, unary operator (`+` with a string), and multiplication of a string with another value. The tests compare different approaches to these operations, highlighting their pros and cons, and provide insight into how JavaScript handles these common use cases.

Related benchmarks:

String to number (version: 0)

Comparing performance of: parseInt vs parseFloat vs Math.floor vs ceil vs Unary vs "1" * 1

Created: 4 years ago by: Guest

Jump to the latest result

parseInt

parseFloat

Math.floor

ceil

Unary

"1" * 1

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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