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string find
(version: 0)
Comparing performance of:
indexof vs includes
Created:
5 years ago
by:
Guest
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Script Preparation code:
var data = 'patrol has been delayed due to some issues. Please ensure that all security officers are equipped with the necessary safety equipments. All security officers are to operate in buddy sytem to maintain safety and protection. In case of emergency please contact our main hotline at 67333 8444. Stay safe and fight the bad people!'
Tests:
indexof
data.indexOf('all')
includes
data.includes('all')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
indexof
includes
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'd be happy to explain the benchmark and its results. **Benchmark Overview** The provided JSON represents a JavaScript microbenchmark named "string find". The benchmark measures the performance of two string methods: `indexOf` and `includes`. These methods are used to search for a specific substring within a given string. **Options Compared** Two options are being compared: 1. **`indexOf`**: This method returns the index of the first occurrence of the specified value in the string, or -1 if it's not found. 2. **`includes`**: This method returns `true` if the string includes the specified value, and `false` otherwise. **Pros and Cons** * **`indexOf`**: * Pros: Generally faster than `includes`, especially for larger strings. * Cons: Returns an index, which may be useful in certain scenarios but can also lead to unnecessary computations if not needed. If the value is not found, it returns -1, which might cause issues in some algorithms. * **`includes`**: * Pros: More intuitive and easier to use, especially when working with strings that contain multiple substrings or complex search patterns. It also returns a boolean value (`true`/`false`) instead of an index, making it more suitable for conditional statements. * Cons: Generally slower than `indexOf`, especially for larger strings. **Library Usage** None of the provided code uses any external libraries, which is beneficial since it allows for direct comparison between the two methods in a straightforward and unbiased manner. **Special JavaScript Features/Syntax** There are no special JavaScript features or syntaxes used in this benchmark. The focus remains on comparing the performance of `indexOf` and `includes`. **Other Alternatives** If you were to implement your own string searching algorithm, some alternative approaches might include: 1. **Linear Search**: Iterate through the string from start to end, checking each character for a match. 2. **Rabin-Karp Algorithm**: Use hashing to quickly identify potential matches in the string. 3. **Knuth-Morris-Pratt Algorithm**: Similar to Rabin-Karp, but uses a different approach to handle strings with repeated patterns. These alternatives are more complex and may have varying performance characteristics depending on the specific use case and input data.
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