Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Array split vs Array split limit vs string substring
(version: 0)
Comparing performance of:
Array.split limit vs Substring vs Array.split
Created:
6 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var s1 = "foo.bar"; var s2 = "foo.bar.bla.boo.foo.bar";
Tests:
Array.split limit
var n1 = s1.split(".", 1)[0]; var n2 = s2.split(".", 1)[0];
Substring
var n1 = s1.substring(0, s1.indexOf(".")); var n2 = s2.substring(0, s2.indexOf("."));
Array.split
var n1 = s1.split(".")[0]; var n2 = s2.split(".")[0];
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
Array.split limit
Substring
Array.split
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
gemma2:9b
, generated one year ago):
This benchmark compares three different ways to extract the first part of a string delimited by a period (".") **Options Compared:** 1. **`Array.split limit`**: - Splits the string using `"."` as the delimiter, but limits the result to a maximum of one split using the `limit` parameter. Then it takes the first element (`[0]`) of the resulting array. - Code: `s1.split(".", 1)[0];` and `s2.split(".", 1)[0];` 2. **`Substring`**: - Uses `substring()` to extract a portion of the string from the beginning up to the first occurrence of ".". - Code: `s1.substring(0, s1.indexOf("."));` and `s2.substring(0, s2.indexOf("."));` 3. **`Array.split`**: - Splits the string using "." as the delimiter without any limit. Then it takes the first element (`[0]`) of the resulting array. - Code: `s1.split(".")[0];` and `s2.split(".")[0];` **Pros/Cons:** - **`Array.split limit`**: - Pros: Can be more efficient if you know the string will always have at most one period. - Cons: Less flexible than other options; doesn't handle cases where there are no periods well. - **`Substring`**: - Pros: Simple and potentially fast, especially for short strings. - Cons: Can be less efficient for longer strings as it might involve iterating through the entire string to find the period. - **`Array.split`**: - Pros: Most flexible; handles cases with multiple periods or no periods correctly. - Cons: Potentially slower than `substring` for simple cases. **Other Considerations:** * **Edge Cases**: Think about what happens if there are no periods in the string. Each method will handle this differently. * **String Length**: The performance of each method can change significantly depending on the length of the input string. **Alternatives:** * **Regular Expressions**: For more complex string manipulation, regular expressions could be used. However, they are generally slower than the methods listed above for simple tasks like extracting a substring before the first period.
Related benchmarks:
Array split vs string substring-1
string split vs string substring 2
Array from vs string split
Array split vs string substring for dates
Array split vs string substring ISO String
Comments
Confirm delete:
Do you really want to delete benchmark?