Tic-tac-toe (also known as noughts and crosses or Xs and Os) is a paper-and-pencil game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three of their marks in a horizontal, vertical, or diagonal row wins the game.
The purpose of the exercise is to implement the game and its rules inside game.js using a TDD approach, writing tests in game.test.js.
There is no requirement to build a GUI for this game. All interactions will be via the function(s) you create.
Use any programming style or patterns, but always use a TDD approach.
- Player X always goes first
- Players alternate placing Xs and Os on the board
- A player can only play on an unoccupied position
- When a player has three in a row, horizontally, vertically or diagonally that player wins the game and the game is complete
- When all nine squares are filled and there is no winner, the game is a draw and the game is complete
Assuming that you already have Node.js LTS installed:
npm installto install dependenciesnpm testto start Jest watching for file changes and re-running each time a change is made