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splatAmdMapVsRegex
(version: 0)
Benchmark.js
Comparing performance of:
spltAndMap vs regex
Created:
2 years ago
by:
Guest
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Tests:
spltAndMap
'one, two, three, four'.split(',').map(s=>s.trim())
regex
'one, two, three, four'.split(/\s*(?:;|$)\s*/)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
spltAndMap
regex
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Browser/OS:
Chrome 119 on Mac OS X 10.15.7
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<iframe src="https://measurethat.net/Embed?id=500342" width="100%" height="500px"></iframe>
spltAndMap
16.8M/s
regex
7.3M/s
View exact numbers
Test name
Executions per second
✓
spltAndMap
16,750,965 Ops/sec
regex
7,348,428 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll break down the provided benchmark and explain what's being tested, compared, and some pros and cons of each approach. **Benchmark Definition and Test Cases** The benchmark is defined by two test cases: 1. `spltAndMap`: Tests the performance of using the `.split()` method with an array map function to process a string. 2. `regex`: Tests the performance of using regular expressions to process a string. **Script Preparation Code and Html Preparation Code** There is no script or HTML preparation code provided, which means that the benchmark assumes the user has already prepared the test data and scripts in their environment. **Tested Options** Two options are being compared: 1. **Using `.split()` with an array map function**: This option uses the `.split()` method to split a string into an array of substrings, and then uses the `map` function to process each substring. 2. **Using regular expressions**: This option uses a regular expression to split a string into substrings. **Pros and Cons** Here are some pros and cons of each approach: **Using `.split()` with an array map function** Pros: * Easy to understand and implement * Efficient for simple cases Cons: * May not be suitable for complex string processing tasks * Can be slower than regular expressions for large datasets **Using regular expressions** Pros: * Suitable for complex string processing tasks * Can handle a wide range of input formats Cons: * Can be more difficult to understand and implement * May be slower due to the overhead of regular expression compilation and execution **Library Used: `String.prototype.split()`** The `.split()` method is a built-in JavaScript method that splits a string into an array of substrings. The first argument to this method is the separator, which can be a string or a regular expression. **Special JS Feature/Syntax (None)** There are no special JavaScript features or syntax being used in this benchmark. **Other Alternatives** If you want to test similar benchmarks, you could consider using other methods such as: * Using `Array.prototype.map()` instead of `.split()` with an array map function * Using a different regular expression pattern for the regex option * Adding additional processing steps to the script or HTML preparation code Keep in mind that the choice of method will depend on your specific use case and requirements.
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