Unique strings array
Unique strings array
- Subject: Unique strings array
- From: Leonardo <email@hidden>
- Date: Sat, 12 Mar 2011 03:11:21 +0100
- Thread-topic: Unique strings array
Hi,
I have to extract a list of "unique words" from an array of hundred
thousands words and put them into an uniqueWordsArray. I already succeeded
but the task is very very slow because I don't index the uniqueWordsArray.
So my question is: how to index the array and get a fast check?
Actually I do:
for(NSString *aWord in wordsArray){
if([uniqueWordsArray containsObject:aWord] == NO){
[uniqueWordsArray addObject:aWord];
}
}
You understand well that the task works fast at the beginning, but it gets
slower and slower at any word added to the uniqueWordsArray.
What's the best way to do that?
Should I use the internal SQLLite database? CoreData? Other?
Regards
-- Leonardo
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