如何从NSString中轻松删除逗号？

Question

I have a UILabel with the following text:

Medium, Black

What I intended to do was grab the words in the string and insert each into a mutable array so I could use each title later on to identify something.

Here's how I done this:

 NSMutableArray *chosenOptions = [[[[cell tapToEditLabel] text] componentsSeparatedByString: @" "] mutableCopy];

    NSString *size = [chosenOptions objectAtIndex:0];
    NSString *colour = [chosenOptions objectAtIndex:1];

I've logged these two NSString and size is returning "Medium," and colour is correctly returning "Black".

My comparison result is always false because of the comma:

itemExists = [[item colour] isEqualToString:colour] && [[item size] isEqualToString:size] ? YES : NO;

That comma causes itemExists to always equal NO.

Would appreciate a simple solution in code please.

The solution needs to only strip commas and not other characters. When dealing with clothing sizes for females I use sizes in a string like this: "[8 UK]" so remove non-alphanumeric characters would remove these. So I really need a solution to deal with just the commas.

Thanks for your time.

Answer 1

Rather than splitting on spaces, you could split on spaces or commas, like this:

NSMutableArray *chosenOptions = [[[[cell tapToEditLabel] text] componentsSeparatedByCharactersInSet:
      [NSCharacterSet characterSetWithCharactersInString:@" ,"]] mutableCopy];
[chosenOptions removeObject:@""];

This would eliminate commas from the size and colour strings.

Answer 2

[yourString stringByReplacingOccurrencesOfString:@"," withString:@""];

容易挤柠檬皮

Answer 3

Try this:

NSString * myString = @"Medium, Black";

NSString * newString = [myString stringByReplacingOccurrencesOfString:@", " withString:@""];

NSLog(@"%@xx",newString);