CharacterAtIndex in Swift

Question

I am trying to go back and forth with different simple objective-c projects and port them to swift.

In objective-c, I have the following loop.

NSCountedSet *firstSet = [[NSCountedSet alloc] init];
NSCountedSet *secondSet = [[NSCountedSet alloc] init];
for(int i = 0; i < firstString.length; i++) {
    [firstSet addObject:@([firstString characterAtIndex:i])];
    [secondSet addObject:@([theSecondString characterAtIndex:i])];
}

I am attempting to port it to swift, but cannot figure out the addObject methodology

  let firstSet = NSCountedSet()
  let secondSet = NSCountedSet()
  let lengthOfFirstString = firstString.utf16Count  
  for var i = 0; i < lengthOfFirstString; i++ {

  }

Help on this would be appreciated

Don't remove your question contents. It is not only for you personally but also for future readers of this thread. — Martin R, Feb 18 '15 at 19:46

Mellson · Accepted Answer · 2015-02-18T19:50:45.367

4

Not pretty, but here goes:

let firstSet = NSCountedSet()
let secondSet = NSCountedSet()
let lengthOfFirstString = firstString.utf16Count
for var i = 0; i < lengthOfFirstString; i++ {
    firstString[advance(firstString.startIndex, i)]
    theSecondString[advance(theSecondString.startIndex, i)]
}

Swift will hopefully include better functionality for substrings in future versions.

edited Feb 18 '15 at 19:50

answered Feb 18 '15 at 19:36

Mellson

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score -1 · Answer 2 · edited Feb 18 '15 at 22:43

-1

Please try the following code:

let firstSet = NSCountedSet()
let secondSet = NSCountedSet()
let lengthOfFirstString = firstString.utf16Count
for var i = 0; i < lengthOfFirstString; i++ {
    firstSet.addObject(@[firstString[i]])
    secondSet.addObject(@[secondString[i]])
}

edited Feb 18 '15 at 22:43

kenorb

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answered Feb 18 '15 at 19:36

Michael Dautermann

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CharacterAtIndex in Swift

2 Answers2