4 ms·

> Indexing code points in both UTF-8 and UTF-16 requires reading the whole string up to index location. Substrings are the same as well. Java's String function

> Indexing code points in both UTF-8 and UTF-16 requires reading the whole string up to index location. Substrings are the same as well. Java's String functions don't index by Unicode code points, though. Java strings are encoded in UCS-2, or at least the API needs to pretend that they are.

vardump 9y ago
That can sure lead to interesting bugs!
Const-me 9y ago
Right. Same in C#, C++ STL, and in Apple’s obj-c/swift.
- tjalfi 9y ago
  Swift takes a different approach than Objective C[0]. [0] https://www.mikeash.com/pyblog/friday-qa-2015-11-06-why-is-swifts-string-api-so-hard.html https://www.mikeash.com/pyblog/friday-qa-2015-11-06-why-is-s...