Benchmark: double include vs match

Script Preparation code:

var str = 'NordVPN has over 5,000 servers in over 50 countries around the world. In addition to standard VPN servers and locations, such as NordVPN Canada or NordVPN USA, you can choose servers optimized for specific purposes, such as P2P sharing or connecting from countries with internet restrictions. Learn more about different server categories and hsgfdyia-hdjvh locations by clicking here.'

Tests:

regex test
/vksd6f7vouv-dfbk|hsgfdyia-hdjvh/.test(str)
double include
str.includes('vksd6f7vouv-dfbk') || str.includes('hsgfdyia-hdjvh')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
regex test
double include

Fastest: N/A

Slowest: N/A

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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 benchmark definition and test cases to understand what is being tested.

**Benchmark Definition:**

The benchmark is testing two different approaches for string matching in JavaScript:

1. **Regex Test:** The first test case uses the `/.test()` method to perform a regular expression test on the input string `str`. This method returns `true` if the string matches the regular expression, and `false` otherwise.
2. **Double Include:** The second test case uses the `includes()` method twice to check if the string contains specific substrings: "vksd6f7vouv-dbk" and "hsgfdyia-hdjvh". This approach checks for both matches separately.

**Options Compared:**

The two options being compared are:

1. Using regular expressions (`/.test()`) for pattern matching.
2. Using multiple `includes()` method calls for substring matching.

**Pros and Cons of Each Approach:**

1. **Regex Test (/.test())**
	* Pros:
		+ Can be more efficient for certain types of patterns, especially when the input string is very large.
		+ Allows for more flexible pattern matching using regular expressions.
	* Cons:
		+ May be slower than substring matching for small inputs or simple patterns.
		+ Requires proper handling of edge cases and errors (e.g., invalid regular expressions).
2. **Double Include**
	* Pros:
		+ Typically faster than regex test, especially for small inputs or simple substrings.
		+ Easier to implement and debug, as it only involves a straightforward string comparison.
	* Cons:
		+ May not be suitable for more complex pattern matching or large input strings.
		+ Requires two separate calls to `includes()`, which can lead to additional overhead.

**Library Usage:**

There is no explicit library usage mentioned in the benchmark definition. However, it's worth noting that some browsers may use internal libraries or engines for regular expression processing or string manipulation.

**Special JS Features/Syntax:**

The test cases do not explicitly utilize any special JavaScript features or syntax beyond standard language constructs like `String.prototype.includes()` and `/regex/`.

**Other Alternatives:**

If you're looking for alternative approaches, consider the following:

1. **Sodium.js**: For cryptographic testing, including string matching.
2. **Benchmarking libraries**: Such as Benchmark.js or micro-benchmarking libraries that provide more advanced features and customization options.

Keep in mind that the choice of approach depends on the specific requirements and constraints of your project. If you need to perform complex pattern matching or work with large input strings, a regex test might be suitable. For simpler substring matching or performance-critical code, a double include approach could be more efficient.

Related benchmarks:

double include vs match (version: 0)

Comparing performance of: regex test vs double include

Created: 3 years ago by: Guest

Jump to the latest result

regex test

double include

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):