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iOS Delegates in Swift 2 Delegation in iOS Modifying Behavior With Delegates

Twinnie Ting
PLUS
Twinnie Ting
Courses Plus Student 2,441 Points
Posted by Twinnie Ting
Twinnie Ting
Courses Plus Student 2,441 Points

Why did we do this to count the length: let length = count(textfield.text) - range.length + count(string)

The scenario was to count the length in the textfield: Why do we have to subtract range.length and then add count(string) to this formula, when we can just say count(textfield.text)?

1 Answer

alex novickis
alex novickis
34,894 Points

strings are made of chars yet not all chars are the same size thanks to emoji I believe the expression you have endeavors to remove the effect of this and count true characters

you answer is somewhere in here http://stackoverflow.com/questions/24037711/get-the-length-of-a-string