i was wondering how you would check for a duplicate item that has both the same key and value.
ie, if you do like
is there a way to check a string that has exactly that key?
if i map another "David" with 555, that's totally fine.
but im having trouble trying to figure out a way to check if there is another item that has "David" with 123.
any pseudocode would be great = )
thank you = )