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substring vs slice v0.1
(version: 0)
Comparing performance of:
substring vs slice
Created:
5 years ago
by:
Guest
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Tests:
substring
let str= "name, phone, address, zip, "; let newStr = str.substring(0, str.length - 2);
slice
let str= "name, phone, address, zip, "; let newStr = str.slice(0, -2);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
substring
slice
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Explanation** MeasureThat.net is used to compare the performance of two approaches: `substring` and `slice`. These methods are used to extract a subset of characters from a string in JavaScript. The benchmark is testing which method performs better in terms of speed. **Options Compared** Two options are being compared: 1. **Substring**: This method uses the `substring()` function, which returns a new string containing a subset of characters from the original string. 2. **Slice**: This method uses the `slice()` function, which also returns a new string containing a subset of characters from the original string. **Pros and Cons** * **Substring Method** + Pros: - Easy to use: it's a built-in JavaScript method that most developers are familiar with. - Portable across browsers. + Cons: - May have performance issues due to its nature (it creates a new string object). * **Slice Method** + Pros: - More efficient than `substring` in terms of memory usage and performance. - Also returns a new string object, but with less overhead. + Cons: - Less familiar to some developers due to its non-standard syntax. **Library/Function Explanation** In this benchmark, there are no libraries or frameworks being tested. The methods `substring` and `slice` are built-in JavaScript functions that perform the required operations. **Special JS Feature/Syntax** There is no special JavaScript feature or syntax being used in these tests. **Other Alternatives** If `substring` and `slice` were not available, other alternatives to extract a subset of characters from a string could be: 1. **IndexOf()**: This method can be used to find the index of the first occurrence of the substring within the string. 2. **Concat()**: This method can be used to concatenate two or more strings and then use indexing to extract the desired part. However, these alternatives would require additional logic to create a new string object with the desired subset of characters. In summary, MeasureThat.net is testing the performance difference between `substring` and `slice`, two built-in JavaScript methods for extracting substrings. The choice between them depends on the specific use case and personal preference.
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