Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
ac782c1a-7fed-4460-9db0-38147e3f0280
(version: 0)
Comparing performance of:
Includes vs Match vs Test
Created:
6 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var pattern = new RegExp(/(^\/auth)(\/((?!ui)([a-zA-Z]+))\/)((v\d\/)?)(login|logout$)/, 'g');
Tests:
Includes
['/auth/ui/login', '/auth/aam/v3/logout'].includes('/auth/aam/v3/logout');
Match
'/auth/aam/v3/logout'.match(pattern);
Test
pattern.test('/auth/aam/v3/logout');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
Includes
Match
Test
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark and its test cases to explain what's being tested, compared, and considered. **Benchmark Overview** The benchmark measures the performance of JavaScript regular expression matching using the ` RegExp` constructor. The goal is to compare different approaches for matching a specific pattern against a set of input strings. **Regular Expression Pattern** The pattern defined in the "Script Preparation Code" section is: ```javascript var pattern = new RegExp(/(^\\/auth)(\\/((?!ui)([a-zA-Z]+))\\/)((v\\d\\/)?)(login|logout$)/, 'g'); ``` This pattern matches any string that starts with `"/auth/"`, followed by an optional sequence of characters (`(?!ui)([a-zA-Z]+)`), and then either: * A version number (`(v\d+/?)` followed by the string "login" * Or a logout operation (`login|logout$`) The `'g'` flag at the end makes the pattern search for all matches in the string, not just the first one. **Test Cases** There are three test cases: 1. **Includes**: Checks if the input string `'/auth/aam/v3/logout'` is included in a list of strings (`['/auth/ui/login', '/auth/aam/v3/logout']`). 2. **Match**: Tests if the pattern matches the input string `'/auth/aam/v3/logout'`. 3. **Test**: Tests the pattern against an individual input string, using the `test()` method. **Comparison and Considerations** The benchmark compares different approaches to regular expression matching: * Using a simple string search (no RegExp) vs. * Using a RegExp object with the `'g'` flag * Using the `match()` or `test()` methods on the RegExp object **Pros and Cons:** 1. **Simple String Search**: Pros: easy to implement, fast execution time; Cons: may not cover all cases (e.g., version numbers), vulnerable to security issues. 2. **RegExp Object with 'g' Flag**: Pros: more efficient than simple string search, covers more cases; Cons: slower execution time due to the `g` flag, more complex implementation. 3. **match() or test() Methods**: Pros: convenient for matching single strings; Cons: slower execution time compared to RegExp object, may not cover all cases. **Library and Special JS Features** No specific libraries are mentioned in the benchmark definition or individual test cases. However, the use of regular expressions (`RegExp` constructor) is a standard JavaScript feature. If you're interested in exploring alternatives, some other approaches for regular expression matching include: * Using the `String.prototype.includes()` method * Implementing your own string search algorithm (e.g., using Boyer-Moore algorithm) * Utilizing external libraries or frameworks that provide optimized regular expression engines (e.g., RegEx.js) Keep in mind that these alternatives may have varying performance characteristics, trade-offs, and implementation complexities.
Related benchmarks:
bf8d3031-a09a-4b1e-a251-2630e7f45e07
Ga cookie grabber . 3
RegEx vs Include All
Regex tests Dani
Comments
Confirm delete:
Do you really want to delete benchmark?