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Regex removing whitespace
(version: 0)
Comparing performance of:
regex vs trim
Created:
5 years ago
by:
Guest
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Script Preparation code:
var string = ' fsajdf asdfjosa fjoiawejf oawjfoei jaosdjfsdjfo sfjos 2324234 sdf safjao j o sdlfks dflks l '
Tests:
regex
string.replace(/\s/g, '')
trim
string.trim()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
regex
trim
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
gemma2:9b
, generated one year ago):
This benchmark tests the efficiency of two different methods for removing whitespace from a string in JavaScript: **Method 1: `string.replace(/\\s/g, '')`** * Uses a regular expression `/\s/g` to match any whitespace character (spaces, tabs, newlines) globally (`g`). * Replaces all matched whitespace with an empty string `''`. **Method 2: `string.trim()`** * A built-in JavaScript method that removes leading and trailing whitespace from a string. **Pros & Cons:** * **`replace(/\\s/g, '')`:** * **Pro:** Can remove any whitespace character, including those within the string. * **Con:** More complex syntax, potentially slower than `trim()` as it involves regular expression matching and substitution. * **`string.trim()`:** * **Pro:** Simpler syntax, generally more efficient for removing only leading/trailing whitespace. * **Con:** Doesn't remove whitespace within the string. **Considerations:** The choice between these methods depends on your specific needs: * If you need to remove *all* whitespace from a string, regardless of its position, `replace(/\\s/g, '')` is the better option. * If you only need to remove leading and trailing whitespace, `string.trim()` is more efficient and concise. **Alternatives:** * **String manipulation libraries:** Libraries like Lodash or Underscore offer specialized functions for string manipulation that might provide further optimization or flexibility. Let me know if you have any other questions about this benchmark or need further clarification!
Related benchmarks:
Regex removing single whitespace vs multiple whitespaces
Removing whitespace with or without Regex
Regex whitespace remove vs trim
Regex remove whitespace vs trim
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