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How to test a string for text

I would like to test a string to see if anywhere it contains the text "hello". I would like the test to not take into account capitalization. How can I test this string?

Solution

  • Use the below code as reference to find check for a substring into a string.

        NSString* string = @"How to test a string for text" ;
    NSString* substring  = @"string for" ;

    NSRange textRange;
    textRange =[string rangeOfString:substring  options:NSCaseInsensitiveSearch];

    if(textRange.location != NSNotFound)
    {

    //Does contain the substring
    }