Function update

update(
    a: number | PlayerOptions,
    b: number | PlayerOptions,
    resultOrOptions: Result | GameOptions,
): [ratingA: number, ratingB: number]
Updates the Elo ratings of two players based on the result of their game.
Parameters
- a: number | PlayerOptions
  The current rating of player A, or a PlayerOptions object.
- b: number | PlayerOptions
  The current rating of player B, or a PlayerOptions object.
- resultOrOptions: Result | GameOptions
  The result of the game (0 for loss, 0.5 for draw, 1 for win) or a GameOptions object containing the result and game type.
Returns [ratingA: number, ratingB: number]
A tuple of the updated ratings for both players.
- Defined in index.ts:123