Objective-C Language NSString Removing Leading and Trailing Whitespace
Example
NSString *someString = @" Objective-C Language \n";
NSString *trimmedString = [someString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
//Output will be - "Objective-C Language"
Method stringByTrimmingCharactersInSet returns a new string made by removing from both ends of the String characters contained in a given character set.
We can also just remove only whitespace or newline
// Removing only WhiteSpace
NSString *trimmedWhiteSpace = [someString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
//Output will be - "Objective-C Language \n"
// Removing only NewLine
NSString *trimmedNewLine = [someString stringByTrimmingCharactersInSet:[NSCharacterSet newlineCharacterSet]];
//Output will be - " Objective-C Language "
