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substring vs split datetime with longer date
(version: 0)
Comparing performance of:
split vs substring
Created:
3 years ago
by:
Guest
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Script Preparation code:
var year = '2004-11-01';
Tests:
split
console.log(year.split('-')[0]);
substring
console.log(year.substring(0,4))
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
split
substring
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON and benchmark setup to understand what is being tested. **Benchmark Definition** The benchmark measures the performance difference between two approaches: using `split()` and `substring()`. The purpose of this test is likely to determine which method is faster for extracting a specific part of a date string (in this case, only the year). **Options Compared** There are two options compared: 1. **`split()`**: This function splits a string into an array of substrings based on a specified separator. In this test, it's used to split the date string at the '-' character. 2. **`substring()`**: This method returns a new string that is part of the original string, starting from a given start index and with a specified length. **Pros and Cons** * **`split()`**: + Pros: flexible, can handle multiple separators, easy to use. + Cons: may create unnecessary arrays, slower for large strings. * **`substring()`**: + Pros: direct access to specific part of string, less memory overhead. + Cons: limited flexibility, only works with single separator. **Library and Special JS Feature** There is no library explicitly mentioned in the benchmark setup. However, the use of `split()` and `substring()` suggests that JavaScript's built-in String methods are being utilized. No special JS features or syntax (like async/await, Promises, etc.) are used in this test case. **Other Alternatives** If you wanted to compare performance between these two approaches, you could consider using other libraries or methods, such as: * Using a regular expression with `exec()` and capturing groups. * Employing a dedicated date parsing library (like moment.js). * Utilizing a String manipulation library like underscore.js. Keep in mind that the choice of alternative will depend on your specific requirements and use case.
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