NSString

NSString è una classe potentissima, lasciatemi mostrare alcune delle proprietà più utilizzate:

printf()

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// printf()
NSString *output = [NSString stringWithFormat:@"%@ / %@", @"primo", @"secondo"];

Eseguire lo split()

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// split() / explode()
NSString *list = @"Norman, Stanley, Fletcher";
NSArray *listItems = [list componentsSeparatedByString:@", "];

Convertire da stringa a valore

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// converting
NSString *doubleString = @"123";
double value = [doubleString doubleValue];

All’interno di una stringa

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// substring
NSString *searchString = @"age";
 
NSString *beginsTest = @"Agencies";
NSRange prefixRange = [beginsTest rangeOfString:searchString
    options:(NSAnchoredSearch | NSCaseInsensitiveSearch)];
 
// prefixRange = {0, 3}
 
NSString *endsTest = @"BRICOLAGE";
NSRange suffixRange = [endsTest rangeOfString:searchString
    options:(NSAnchoredSearch | NSCaseInsensitiveSearch | NSBackwardsSearch)];
 
// suffixRange = {6, 3}

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