Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
case insensitive comparison
(version: 0)
Comparing performance of:
TLC fail 1 vs TLC pass 1 vs TLC pass 2 vs TLC fail 2 vs LC fail 1 vs LC pass 1 vs LC pass 2 vs LC fail 2
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var a = "John Doe" var b = "john doe" var c = "john smith" var d = "joHn Smith" var e = "JoHn SmiTh"
Tests:
TLC fail 1
a.toLowerCase() == b.toLowerCase()
TLC pass 1
d.toLowerCase() == b.toLowerCase()
TLC pass 2
e.toLowerCase() == d.toLowerCase()
TLC fail 2
a.toLowerCase() == e.toLowerCase()
LC fail 1
a.localeCompare(b, 'en', {'sensitivity': 'base'});
LC pass 1
d.localeCompare(b, 'en', {'sensitivity': 'base'});
LC pass 2
e.localeCompare(d, 'en', {'sensitivity': 'base'});
LC fail 2
a.localeCompare(e, 'en', {'sensitivity': 'base'});
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (8)
Previous results
Fork
Test case name
Result
TLC fail 1
TLC pass 1
TLC pass 2
TLC fail 2
LC fail 1
LC pass 1
LC pass 2
LC fail 2
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview** The provided JSON represents a benchmark test case for comparing case insensitivity in JavaScript string comparisons. The benchmark tests the performance of two approaches: using the `toLowerCase()` method and using the `localeCompare()` function with the `sensitivity` option set to `'base'`. **Benchmark Definition** The benchmark definition is the script preparation code, which defines five strings: * `a = "John Doe"` * `b = "john doe"` (case-insensitive comparison) * `c = "john smith"` (not used in this benchmark) * `d = "joHn Smith"` (case-insensitive comparison with extra 'H') * `e = "JoHn SmiTh"` (case-insensitive comparison) **Test Cases** There are eight test cases, each defining a specific string comparison scenario: 1. `a.toLowerCase() == b.toLowerCase()` - tests case insensitivity using the `toLowerCase()` method 2. `d.toLowerCase() == b.toLowerCase()` - tests case insensitivity using the `toLowerCase()` method on a different string 3. `e.toLowerCase() == d.toLowerCase()` - tests case insensitivity using the `toLowerCase()` method on another string 4. `a.localeCompare(b, 'en', {'sensitivity': 'base'})` - tests case insensitivity using the `localeCompare()` function with sensitivity set to `'base'` 5-8 are similar variations of test cases 1-3, but using different strings and locale settings. **Options Compared** The two options being compared in this benchmark are: * Using the `toLowerCase()` method for case-insensitive comparisons * Using the `localeCompare()` function with the `sensitivity` option set to `'base'` **Pros and Cons of Each Approach** **`toLowerCase()` Method:** Pros: * Widely supported and implemented across browsers * Easy to use and understand Cons: * Can be slow for large strings or complex comparisons * May not preserve Unicode properties or character normalization **LocaleCompare() Function with sensitivity set to `'base'`:** Pros: * Preserves Unicode properties and character normalization * Supports more sophisticated comparison logic (e.g., comparing strings in different locales) Cons: * Less widely supported than `toLowerCase()` across older browsers * More complex usage and potentially slower performance for simple comparisons **Other Considerations** The benchmark also uses the `sensitivity` option set to `'base'`, which affects how the localeCompare() function handles case-insensitive comparisons. This can have implications for how different locales handle character normalization and Unicode properties. **Library Used** None, as both `toLowerCase()` and `localeCompare()` are built-in JavaScript methods. Overall, this benchmark aims to compare the performance of two approaches for case-insensitive string comparisons in JavaScript, highlighting the trade-offs between simplicity and precision in string comparison logic.
Related benchmarks:
Javascript: Case insensitive string comparison performance with indexOf
Javascript: Case insensitive string comparison performance lowerLocale
Javascript: Case insensitive string comparison performance en-US accent
Javascript: toLowerCase vs equality ===
Javascript: Case insensitive string comparison performance with indexOf 2
Comments
Confirm delete:
Do you really want to delete benchmark?