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.includes() vs .test() vs .match() vs .indexOf() vs .search() fix2
(version: 0)
Comparing performance of:
text.includes() vs text.test() vs text.match() vs text.indexOf() vs text.search()
Created:
3 years ago
by:
Guest
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Script Preparation code:
var text = (Math.random() + 1).toString(36).substring(2)
Tests:
text.includes()
text.includes('my')
text.test()
/my/.test(text)
text.match()
text.match(/my/)?.length >= 0
text.indexOf()
text.indexOf('my') >= 0
text.search()
text.search('my') >= 0
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
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Test case name
Result
text.includes()
text.test()
text.match()
text.indexOf()
text.search()
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** MeasureThat.net provides a JavaScript microbenchmarking tool that allows users to compare the performance of different methods for searching and verifying strings in JavaScript. The benchmark defines five test cases: 1. `text.includes('my')` 2. `/my/.test(text)` 3. `text.match(/my/)?.length >= 0` 4. `text.indexOf('my') >= 0` 5. `text.search('my') >= 0` Each test case measures the performance of a specific method for searching or verifying a string. **Comparison of Methods** 1. **`includes()`**: The `includes()` method returns a boolean indicating whether the specified value is present in the string. It is generally considered to be the most efficient and readable option. * Pros: Easy to read and maintain, widely supported by browsers. * Cons: Can be slower than other methods for large strings or arrays. 2. **`.test()`**: The `test()` method returns a boolean indicating whether the specified regular expression matches the string. It is generally considered to be less efficient than `includes()`. * Pros: Can be useful for more complex searches, such as verifying a string against a specific pattern. * Cons: Can be slower and less readable than `includes()`, and may require additional configuration (e.g., regular expression syntax). 3. **`.match()`**: The `match()` method returns an array of matches if the specified regular expression matches the string. It is generally considered to be more efficient than `.test()`. * Pros: Can return multiple matches, useful for certain use cases. * Cons: Returns an array, which can be slower and less readable than a simple boolean value. 4. **`.indexOf()`**: The `indexOf()` method returns the index of the first occurrence of the specified value in the string. It is generally considered to be less efficient than `includes()`. * Pros: Can return the exact position of the match, useful for certain use cases. * Cons: Returns an index, which can be slower and less readable than a simple boolean value. 5. **`.search()`**: The `search()` method returns the index of the first occurrence of the specified regular expression in the string. It is generally considered to be less efficient than `includes()`. * Pros: Can return the exact position of the match, useful for certain use cases. * Cons: Returns an index, which can be slower and less readable than a simple boolean value. **Library and Special Features** No libraries are used in this benchmark. No special JavaScript features or syntax are mentioned. **Alternative Approaches** Other approaches to searching and verifying strings in JavaScript include: 1. **Regular expressions**: Regular expressions can be used to search for patterns in strings, but they can be complex and difficult to read. 2. **Array methods**: Array methods like `some()`, `every()`, or `find()` can be used to search and verify arrays of strings. 3. **String iteration**: String iteration using a loop can be used to search and verify strings, but it can be slower than other methods. Overall, the `includes()` method is generally considered to be the most efficient and readable option for searching and verifying strings in JavaScript.
Related benchmarks:
Regexp vs. Includes vs. IndexOf
String indexOf vs includes
Js Search -String IndexOf vs Includes
.includes() vs indexOf() for single-character search in string
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