Truncate white space in text in iphone/objective c

Is there any function to remove the white spaces from text message in objective c?

For eg:for "How are you",the r开发者_StackOverflowesult should be "howareyou"

Thanks in advance.

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You could use NSString's componentsSeparatedByCharactersInSet with whitespaceCharacterSet to first split the string on the whitespace, and then join the components using NSArray's componentsJoinedByString.

eg.

NSString *myString=@"How are you";
myString = [[myString componentsSeparatedByCharactersInSet: [NSCharacterSet whitespaceCharacterSet]] componentsJoinedByString: @""];
NSLog(myString); // displays Howareyou

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Tom's approach isn't very efficient. What you want is:

-stringByTrimmingCharactersInSet:

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NSString *myString = @"How are you";
myString = [myString stringByReplacingOccurrencesOfString:@" " withString:@""];