Benchmark: eredfgfgsfgd4erfsdfgdf

Script Preparation code:

var string = "Hello world!";
var regex = /Hello/;

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

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

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Android 10; Mobile; rv:109.0) Gecko/112.0 Firefox/112.0

Browser/OS: Firefox Mobile 112 on Android

View result in a separate tab

Test name	Executions per second
RegEx.test	9960911.0 Ops/sec
String.includes	13843043.0 Ops/sec
String.match	4720408.5 Ops/sec
String.indexof	508232384.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark and the options compared.

**Benchmark Purpose:**
The purpose of this benchmark is to compare the performance of different string-related methods in JavaScript across various browsers and devices.

**Script Preparation Code:**
The script preparation code defines two variables:
```javascript
var string = "Hello world!";
var regex = /Hello/;
```
Here, `string` is a simple string literal containing the text "Hello world!", and `regex` is a regular expression pattern matching the substring "Hello".

**Html Preparation Code:**
There is no HTML preparation code provided.

**Test Cases:**

1. **RegEx.test(string):**
This test case measures the performance of the `test()` method for regular expressions on the defined string.
2. **String.includes("Hello"):**
This test case measures the performance of the `includes()` method for searching for the substring "Hello" within the defined string.
3. **String.match("Hello"):**
This test case measures the performance of the `match()` method for finding the first occurrence of the substring "Hello" within the defined string.
4. **String.indexOf("Hello")**
This test case measures the performance of the `indexOf()` method for finding the index of the first occurrence of the substring "Hello" within the defined string.

**Comparison Options:**

* The benchmark compares these four string-related methods:
	+ Regular expression-based `test()` method
	+ String-based `includes()` method
	+ String-based `match()` method
	+ String-based `indexOf()` method
* The comparison is done across different browsers (Firefox Mobile 112) and devices (Mobile, Android 10).

**Pros and Cons of each approach:**

* **Regular expression-based `test()` method:**
	+ Pros:
		- Can be used for more complex pattern matching.
		- Can handle non-string data types using the `test()` function with a string as an argument.
	+ Cons:
		- May be slower than other methods due to the overhead of regular expression compilation and execution.
* **String-based `includes()` method:**
	+ Pros:
		- Fastest among the four methods, as it uses a simple substring search.
	+ Cons:
		- May not work correctly for non-string data types or when searching for an empty string within a larger string.
* **String-based `match()` method:**
	+ Pros:
		- Can be used to extract matches from the entire string using the `g` flag (e.g., `/Hello/g`). This can lead to faster performance compared to `includes()` when dealing with large strings.
	+ Cons:
		- May not work correctly for non-string data types or when searching for an empty string within a larger string.
* **String-based `indexOf()` method:**
	+ Pros:
		- Fastest among the four methods, as it uses a simple substring search.
	+ Cons:
		- Does not handle null or undefined values in the same way as other methods (i.e., will throw an error if passed a non-string value).

**Library and Purpose:**
None of the test cases explicitly use any external libraries.

**Special JS features and syntax:**
There are no special JavaScript features or syntax mentioned in the benchmark definition.

Related benchmarks:

eredfgfgsfgd4erfsdfgdf (version: 0)

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

Created: one year ago by: Guest

Jump to the latest result

RegEx.test

String.includes

String.match

String.indexof

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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