Benchmark: test: number to string

Tests:

String
String(10)
plus after
10 + ''
plus before
'' + 10
template
`${10}`
toString
const num = 10 num.toString()
toFixed
const num = 10 num.toFixed()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
String
plus after
plus before
template
toString
toFixed

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks.

**Benchmark Definition**

The provided JSON defines a benchmark with no specific script preparation code or HTML preparation code. This means that the tests are likely to be focusing on the syntax and behavior of different JavaScript operations, rather than any external factors like HTML parsing or DOM manipulation.

**Test Cases**

There are six test cases:

1. `String(10)`: This test case is likely to measure the performance of concatenating an empty string with a number.
2. `plus after` (`10 + ''`): This test case measures the performance of adding an empty string to a number using the `+` operator.
3. `plus before` (`'' + 10`): Similar to the previous one, but the order is reversed.
4. `template` (``${10}``): This test case uses template literals to insert the value of a variable into a string.
5. `toString` (`const num = 10\r\nnum.toString()`): This test case measures the performance of calling the `toString()` method on a number.
6. `toFixed` (`const num = 10\r\nnum.toFixed()`): This test case measures the performance of calling the `toFixed()` method on a number.

**Options Compared**

In this benchmark, two main options are being compared:

* Concatenation with an empty string using the `+` operator
* Using template literals

Both approaches aim to insert the value of a variable into a string. However, they have different syntax and performance characteristics.

**Pros and Cons**

Here's a brief summary of each approach:

1. **Concatenation with `+` operator**
	* Pros: Simple and widely supported.
	* Cons: Can lead to poor performance due to the creation of intermediate strings.
2. **Template literals**
	* Pros: More concise and readable, can improve performance by avoiding intermediate string creation.
	* Cons: Less widely supported in older browsers.

**Library Usage**

None of the test cases explicitly use any external libraries. However, it's worth noting that some modern JavaScript engines (e.g., V8) may utilize internal libraries or built-in functions to optimize string concatenation and interpolation.

**Special JS Features**

The template literal syntax (``${10}``) is a relatively recent feature introduced in ECMAScript 2015. It allows for more expressive string interpolation and formatting, but might not be supported by older browsers or environments.

**Alternatives**

If you're looking to create your own JavaScript microbenchmarking tests, here are some alternatives:

1. **Benchmarking libraries**: Consider using dedicated benchmarking libraries like `benchmark` (JavaScript) or ` benchmark.js` (Node.js).
2. **Chromatic**: A headless browser for automating web testing and benchmarking.
3. **MS Paint Benchmark**: A simple benchmarking tool that generates a series of image files to test rendering performance.

Keep in mind that each alternative has its own strengths, weaknesses, and requirements. Be sure to choose the one that best fits your needs and goals.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
String	17021892.0 Ops/sec
plus after	1029704704.0 Ops/sec
plus before	1031397184.0 Ops/sec
template	1028459840.0 Ops/sec
toString	261833680.0 Ops/sec
toFixed	13490524.0 Ops/sec

Related benchmarks:

test: number to string (version: 0)

Comparing performance of: String vs plus after vs plus before vs template vs toString vs toFixed

Created: one year ago by: Guest

Jump to the latest result

String

plus after

plus before

template

toString

toFixed

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):