Benchmark: + vs parseInt - MeasureThat.net

Script Preparation code:

function plus() {
 return +'1000';
}

function parse() {
  return parseInt('1000', 10);
}

Tests:

+
plus()
parseInt
parse()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
+
parseInt

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases to understand what's being tested.

**Benchmark Definition**

The provided JSON defines a simple benchmark that compares two approaches:

1. `plus()`: This function returns the result of concatenating two strings using the `+` operator. In this case, it concatenates the string `'1000'` with itself.
2. `parse()`: This function attempts to parse the integer value `1000` from a string using the `parseInt()` method.

**Script Preparation Code**

The script preparation code is a JavaScript snippet that defines both functions:
```javascript
function plus() {
  return +'1000';
}

function parse() {
  return parseInt('1000', 10);
}
```
This code sets up the two functions to be compared in the benchmark.

**Html Preparation Code**

There is no HTML preparation code provided, which means that the benchmark will not create any visual elements or simulate user interactions.

**Individual Test Cases**

The test cases are defined as an array of objects, each representing a single test. There are only two test cases:

1. `plus()`
2. `parse()`

Each test case is associated with a specific JavaScript function (`plus()` or `parse()`) and provides metadata such as the raw UA string (User Agent), browser name and version, device platform, operating system, executions per second, and test name.

**Library Usage**

Neither of the benchmark functions uses any external libraries. The `parseInt()` method is a built-in JavaScript function that comes with every JavaScript engine.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax used in this benchmark. It's a straightforward comparison of two simple functions using standard JavaScript constructs.

**Other Alternatives**

If you were to rewrite this benchmark, you might consider alternative approaches:

1. **String concatenation vs string interpolation**: Instead of comparing `+` with `parseInt()`, you could compare the performance of string concatenation using `+` with different string interpolation methods like template literals (`${}`) or `concat()`.
2. **Function calls vs method calls**: You could also test the performance difference between calling a function directly (e.g., `plus()` ) versus invoking it as a method on an object (e.g., `obj.plus()`).
3. **Array operations**: Another possible benchmark would compare the performance of array operations, such as pushing elements onto an array or using array methods like `forEach()` or `map()`.
4. **Regular expressions**: You could also test the performance of regular expression matching and execution.

These alternative benchmarks can help you understand how different JavaScript features and syntax affect performance in various scenarios.

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser/OS: Chrome 90 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
+	14478845.0 Ops/sec
parseInt	4574181.0 Ops/sec

Related benchmarks:

+ vs parseInt (version: 0)

Comparing performance of: + vs parseInt

Created: 3 years ago by: Guest

Jump to the latest result

+

parseInt

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):