Interested to Buy Any Domain ? << Click Here >> for more details...
The String struct doesn’t provide a count or length property or method to count the number of characters it contains. Instead a global countElements<T>() function is available. When applied to strings, what’s the complexity of the countElements function:
O(1)
O(n)
and why?
- 1 Answers
- 2580 Views
- I also Faced
- E-Mail Answers
Answer / iosraj
Swift strings support extended grapheme clusters. Each character stored in a string is a sequence of one or more unicode scalars that, when combined, produce a single human readable character. Since different characters can require different amounts of memory, and considering that an extreme grapheme cluster must be accessed sequentially in order to determine which character it represents, it’s not possible to know the number of characters contained in a string upfront, without traversing the entire string. For that reason, the complexity of the countElements function is O(n).
| Is This Answer Correct ? | 0 Yes | 0 No |
Explain how you define variables in Swift language?
How will you connect ui?
What are the various ways to unwrap an optional in swift?
Explain how multiple line comment can be written in swift?
Is apple using swift?
Is swift like python?
What is a deinitializer in swift?
Explain enum in swift.
What is encapsulation in swift?
How can we make a property optional in swift?
What is the full meaning of swift?
How does closure work in swift?
Apple iOS 
