If you want your code to work on iOS 7 as well as iOS 8 you should use one of the rangeOfString calls instead. Basically if the range returned has a length of zero, the substring is not there. /* These methods return length==0 if the target string is not found. So, to check for … Read more
if ([mystring isEqualToString:@”Johns”]){ //do some stuff in here }
You can use the NSString instance methods substringWithRange: or substringFromIndex: NSString *str = @”A. rahul VyAs”; NSString *newStr = [str substringWithRange:NSMakeRange(3, [str length]-3)]; or NSString *str = @”A. rahul VyAs”; NSString *newStr = [str substringFromIndex:3];
Function? Category method? – (NSRange)fullRange { return (NSRange){0, [self length]}; } [myString replaceOccurrencesOfString:@”replace_me” withString:replacementString options:NSCaseInsensitiveSearch range:[myString fullRange]];
You can add custom actions to any of the available UILabel replacements that support links using a fake URL scheme that you’ll intercept later: TTTAttributedLabel *tttLabel = <# create the label here #>; NSString *labelText = @”Lost? Learn more.”; tttLabel.text = labelText; NSRange r = [labelText rangeOfString:@”Learn more”]; [tttLabel addLinkToURL:[NSURL URLWithString:@”action://show-help”] withRange:r]; Then, in your … Read more
Use NSNumberFormatter. Specifically: NSNumberFormatter *formatter = [NSNumberFormatter new]; [formatter setNumberStyle:NSNumberFormatterDecimalStyle]; // this line is important! NSString *formatted = [formatter stringFromNumber:[NSNumber numberWithInteger:2000000]]; [formatter release]; By default NSNumberFormatter uses the current locale so the grouping separators are set to their correct values by default. The key thing is to remember to set a number style.
This will also retrieve a character at index i as an NSString, and you’re only using an NSRange struct rather than an extra NSString. NSString * newString = [s substringWithRange:NSMakeRange(i, 1)];
We can do this by splitting and then joining. Requires OS X 10.5+ for the componentsSeparatedByCharactersInSet: NSCharacterSet *charactersToRemove = [[NSCharacterSet alphanumericCharacterSet] invertedSet]; NSString *strippedReplacement = [[someString componentsSeparatedByCharactersInSet:charactersToRemove] componentsJoinedByString:@””];
NSString *newString = [oldString substringToIndex:[oldString length]-1]; Always refer to the documentation: substringToIndex: length To include code relevant to your case: NSString *str = textField.text; NSString *truncatedString = [str substringToIndex:[str length]-1];
The following line… testArray2 = [s componentsSeparatedByString:@”|”]; will cause the array to now contain 3 items, instead of 2….. no need to split again!