What is the best way to compare two NSString objects, ignoring case?

Question

I want to compare two lines. It does not work when the string is uppercase. How to convert both strings to capital letters and compare.

I have some sample code, can someone fix this.

if ([[txtAnswer.text capitalizedString] isEqualToString:[answer capitalizedString]]) { // Do somehing } 

Answer 1

If you look at the link of the NSString class , you will see the caseInsensitiveCompare: and localizedCaseInsensitiveCompare: methods under the "Identification and String Comparison" caseInsensitiveCompare: .

Answer 2

You can try something like:

 if ([txtAnswer.text caseInsensitiveCompare: answer] == NSOrderedSame) { // do something. } 

Answer 3

You can do case-insensitive string comparisons.

 if([txtAnswer.text compare:answer options:NSCaseInsensitiveSearch] == NSOrderedSame) { // Do somehing }