ios - How to compare 2 arrays in 2 columns of a picker view and display the result in single text field

Question

I mean to say is if I have 2 arrays like

Array1 a, b, c, d, e

Array2 c,d,b,a,e

Now if I select a in Array1 and b in Array2 it must show as ab in the textbox

And if I take both same alphabet aa in both arrays so I must display a single a Kindly help me with the code as I am new to iOS learning

Answer 1

NSString *ValueA = [arrayA objectAtIndex:<#(NSUInteger)#>];
NSString *ValueB = [arrayB objectAtIndex:<#(NSUInteger)#>];



if ([ValueA isEqualToString ValueB]) {
    textField.text = ValueB
} else {
    textField.text = [pickerValueA stringByAppendingString pickerValueB]

}