Benchmark: Test Map Number Split 2

Script Preparation code:

var excludeProduct = '1,2,3,4,5,6,7,8,9,10'
var list = excludeProduct.split(',')

Tests:

Try 1
list.map( x => +x )
Try 2
list.map(Number)
Try 3
list.map(x => parseInt(x))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Try 1
Try 2
Try 3

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down the provided JSON data and explain what's being tested, compared, and the pros/cons of different approaches.

**Benchmark Definition**
The benchmark definition is a simple script that prepares the input data:
```javascript
var excludeProduct = '1,2,3,4,5,6,7,8,9,10'
var list = excludeProduct.split(',')
```
This script creates an array `list` by splitting the string `excludeProduct` into individual elements using the `split()` method.

**Test Cases**
There are three test cases that compare different approaches to converting the values in the `list` array:

1. **Try 1**: `list.map(x => +x)`
2. **Try 2**: `list.map(Number)`
3. **Try 3**: `list.map(x => parseInt(x))`

Let's analyze each approach:

* **Try 1: `list.map(x => +x)`**
	+ Pros:
		- Simple and concise syntax.
	+ Cons:
		- This approach assumes that all values in the array are numeric strings, which may not be the case if the original string contains non-numeric characters. For example, if `excludeProduct` contained a comma followed by a letter, this approach would throw an error.
* **Try 2: `list.map(Number)`**
	+ Pros:
		- More robust than Try 1, as it will convert numeric strings to numbers and ignore non-numeric values.
	+ Cons:
		- It's still not ideal, as it may slow down performance due to the overhead of parsing strings to numbers.
* **Try 3: `list.map(x => parseInt(x))`**
	+ Pros:
		- Similar to Try 2, but uses `parseInt()` instead, which can be faster and more efficient for numeric conversions.
	+ Cons:
		- Still assumes that all values in the array are strings that can be parsed to numbers. If there are non-string values or malformed string inputs, this approach will throw an error.

**Library: `split()`**
The `split()` method is a built-in JavaScript function that splits a string into an array of substrings based on a specified separator (in this case, the comma). It's a simple and efficient way to split strings in JavaScript.

**Other Considerations**

* The benchmark results show that Try 1 performs the best, followed by Try 3, and then Try 2. This suggests that parsing numeric values is not the bottleneck, but rather the splitting operation.
* The test uses Safari 15 as the browser, which may affect the results due to differences in JavaScript engine implementation or caching.

**Alternatives**
If you needed to perform a similar benchmark, you might consider using different approaches, such as:

* Using `Array.prototype.map()` with a callback function that converts values to numbers
* Implementing your own custom splitting algorithm (e.g., using regular expressions)
* Comparing the performance of different parsing libraries or tools (e.g., NumJS, FastParse)

Keep in mind that these alternatives might not be as straightforward or efficient as using built-in JavaScript functions like `split()` and `map()`.

Related benchmarks:

Test Map Number Split 2 (version: 0)

Comparing performance of: Try 1 vs Try 2 vs Try 3

Created: 4 years ago by: Guest

Jump to the latest result

Try 1

Try 2

Try 3

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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