Benchmark: occurences is string

Script Preparation code:

var str = 'asdfgh\nertzui\nxcvb\nfghj'

Tests:

with match
(str.match(/\n/g) || []).length
with split
str.split('\n').length

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
with match
with split

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON and explain what's being tested on MeasureThat.net.

**Benchmark Definition**

The benchmark definition is a JSON object that contains metadata about the test case:
```json
{
  "Name": "occurences is string",
  "Description": null,
  "Script Preparation Code": "var str = 'asdfgh\\nertzui\\nxcvb\\nfghj'",
  "Html Preparation Code": null
}
```
This definition specifies the following:

* `Name`: A human-readable name for the benchmark.
* `Description`: An empty string, which indicates that no description is provided.
* `Script Preparation Code`: The JavaScript code that's executed before running the benchmark. In this case, it creates a string variable `str` containing multiple newline characters (`\n`).
* `Html Preparation Code`: An empty string, indicating that no HTML preparation code is needed.

**Individual Test Cases**

The test cases are defined in an array:
```json
[
  {
    "Benchmark Definition": "(str.match(/\\n/g) || []).length",
    "Test Name": "with match"
  },
  {
    "Benchmark Definition": "str.split('\\n').length",
    "Test Name": "with split"
  }
]
```
Each test case consists of two parts:

* `Benchmark Definition`: The actual JavaScript code that's being benchmarked. In the first test case, it uses the `match` method to search for occurrences of `\n` in the string and returns the length of the resulting array. In the second test case, it uses the `split` method to split the string into substrings separated by `\n` and returns the number of resulting elements.
* `Test Name`: A human-readable name for each test case.

**Library and Special JS Features**

Both test cases use built-in JavaScript methods:

* `match`: The `String.prototype.match()` method is used to search for a regular expression pattern in a string. In this case, it's searching for the literal `\n` character.
* `split`: The `String.prototype.split()` method is used to split a string into substrings based on a separator.

There are no special JS features or syntax being tested here.

**Other Alternatives**

Some alternative approaches that could be used to measure the performance of these two methods might include:

* Using a different regular expression pattern, such as `\r\n` instead of just `\n`.
* Adding additional processing steps after splitting the string, such as concatenating the resulting substrings into an array.
* Measuring the performance of other string manipulation methods, such as `replace()` or `indexOf()`, in place of `match()` and `split()`.

Overall, this benchmark is testing the basic performance of two commonly used string manipulation methods in JavaScript: `match()` and `split()`.

Related benchmarks:

occurences is string (version: 0)

Comparing performance of: with match vs with split

Created: 3 years ago by: Guest

Jump to the latest result

with match

with split

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):