What is the significance of jokers in poker and how do they affect gameplay?

In Poker, jokers are not typically used in traditional gameplay. However, in some variations of the game, such as Joker Poker, the joker can act as a wild card, which means it can substitute for any other card to help create a winning hand. This can add an element of unpredictability and excitement to the game, as players have the potential to form stronger hands with the help of the joker.