Benchmark: RegEx.test vs. String.includes vs. String.match nested

Script Preparation code:

var string = "nested.object";
var regex = /\./;

Tests:

RegEx.test
regex.test(string);
String.includes
string.includes(".");
String.match
string.match(".");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
RegEx.test
String.includes
String.match

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's dive into the provided benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is defined by a JSON object that contains the following information:

* `Name`: A unique name for the benchmark, which is "RegEx.test vs. String.includes vs. String.match nested".
* `Description`: An empty string, indicating that no description is provided.
* `Script Preparation Code` and `Html Preparation Code`: These are snippets of code that prepare the environment for the benchmark. In this case, the script prepares a variable `string` with the value `"nested.object"` and another variable `regex` with a regular expression `/\\./;`.

**Individual Test Cases**

The benchmark consists of three individual test cases, each represented by an object in the array:

* **RegEx.test**: This test calls the `test()` method on a regular expression object that matches any character (`/\\./;`).
* **String.includes**: This test calls the `includes()` method on the prepared string variable, passing the regular expression as an argument.
* **String.match**: This test calls the `match()` method on the prepared string variable, passing the regular expression as an argument.

**Options Compared**

The three test cases compare the performance of different approaches to achieve a similar result:

1. Using a regular expression (`RegEx.test`).
2. Using the `includes()` method with a regular expression.
3. Using the `match()` method with a regular expression.

**Pros and Cons of Each Approach**

Here's a brief analysis of each approach:

* **RegEx.test**: This is a direct approach using a regular expression. It can be fast, but it may not work as expected if the regex pattern is complex or has unusual characters.
* **String.includes**: The `includes()` method is generally faster than `match()` because it doesn't require capturing groups. However, it may have performance issues with large strings or complex patterns.
* **String.match**: The `match()` method is similar to `includes()`, but it captures any matches and returns an array of matches. This can be slower than `includes()` for simple cases.

**Library Used**

The test case uses the built-in `String` object in JavaScript, which provides various methods like `includes()`, `match()`, and others.

**Special JS Feature or Syntax**

None mentioned explicitly.

**Other Considerations**

When running this benchmark, it's essential to consider the following:

* The quality of the regular expression pattern (`/\\./;`) is crucial. A simple character set might not work as expected, especially in edge cases.
* The string size and complexity can significantly impact performance.
* Different browsers or environments may exhibit different performance characteristics.

**Alternatives**

If you're interested in exploring alternative approaches to this benchmark, consider the following:

* Using a parsing library like `parse-repl` to parse the regular expression and test its performance.
* Implementing your own string matching algorithm using techniques like Knuth-Morris-Pratt or Rabin-Karp.
* Comparing performance with other programming languages or frameworks that provide similar functionality.

Keep in mind that this benchmark is designed to compare specific approaches, so exploring alternative methods might not yield the same results.

Related benchmarks:

RegEx.test vs. String.includes vs. String.match nested (version: 0)

Comparing performance of: RegEx.test vs String.includes vs String.match

Created: 4 years ago by: Guest

Jump to the latest result

RegEx.test

String.includes

String.match

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):