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111 regex test
(version: 0)
with 111
Comparing performance of:
regex 1 vs regex2
Created:
4 years ago
by:
Guest
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Tests:
regex 1
/^(00[0-9]|0[1-9][0-9]|10[0-9]|11[01])/.test(110)
regex2
/^([0][0-9][0-9]|[0-1][0][0-9]|[0-1][0-1][0-1])/.test(110)
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Suite status:
<idle, ready to run>
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Test case name
Result
regex 1
regex2
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to help explain the provided benchmark. **What is being tested?** The provided benchmark tests two different regular expression (regex) patterns using JavaScript's built-in `test()` function. A regular expression is a pattern used to match character combinations in strings. In this case, the benchmark is comparing the performance of two regex patterns: 1. `/^(00[0-9]|0[1-9][0-9]|10[0-9]|11[01])/.test(110)` 2. `/^([0][0-9][0-9]|[0-1][0][0-9]|[0-1][0-1][0-1])/.test(110)` **Options compared** The benchmark is comparing the performance of these two regex patterns. The main difference between the two patterns lies in the way they match digits: Pattern 1: `00[0-9]|0[1-9][0-9]|10[0-9]|11[01]` - Matches strings that start with "00", followed by any digit from 0 to 9 (inclusive), and then ends with one of the following: - A single-digit number - A two-digit number starting with 1 followed by another single digit Pattern 2: `([0][0-9][0-9]|[0-1][0][0-9]|[0-1][0-1][0-1])` - Matches strings that start with one of the following: - A three-digit number starting with 0 followed by another two digits - A single digit **Pros and cons** The pros and cons of each approach are: Pattern 1 (more complex regex): Pros: * More flexible, as it can match a wider range of strings Cons: - Longer to parse and execute due to its complexity - May be slower due to the additional parsing steps required Pattern 2 (less complex regex): Pros: - Shorter to parse and execute, making it potentially faster - Simpler syntax Cons: - Less flexible than Pattern 1, as it can only match certain specific strings **Library usage** Neither of the provided benchmarks uses any external libraries. However, if you were to add a library, some options could include: * `regex-construct`: A lightweight regex testing library for Node.js * `regex-tester`: A simple regex testing library that allows you to define multiple test cases and run them **Special JavaScript features or syntax** None of the provided benchmarks use any special JavaScript features or syntax beyond regular expressions. **Alternatives** Other alternatives for creating benchmark tests include: * **Benchmarking frameworks**: Tools like `benchmark.js` or `fast-bench` provide a simple way to write and compare benchmarks. * **JavaScript performance tools**: Tools like `jsperf`, `Speedometer`, or `PerfHog` offer built-in support for writing and running benchmarks, often with the ability to visualize results in real-time. I hope this explanation helps!
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