Workshop › Klondike Solitaire › Step 34 of 40

Winning

What we are doing

The game is won when all four foundations hold 13 cards. Only a move onto a foundation can win, so tryMove simply checks after every move.

```js
let won

  won = false

function checkWin() {
  if (['f0', 'f1', 'f2', 'f3'].every((f) => piles[f].length === 13)) {
    won = true
  }
}

  checkWin()
```

What it means

• every is some's partner: true only if the function is true for every item.
• checkWin is called in tryMove after each move.

Your turn

1. Under let frames write let won; in deal, under frames = 0, write won = false.
2. Under autoMove, leave an empty line and write checkWin.
3. In tryMove, call checkWin() between moves += 1 and return true.

Skills: Game states

← A clock You won! →

All steps

1. The green table
2. Draw one card
3. The face of a card
4. Red and black
5. A deck of 52
6. Shuffle
7. Piles in one object
8. Deal the seven columns
9. A place for every pile
10. Put the piles on the table
11. Fan out the columns
12. Outlines for empty places
13. Turn over a card
14. Space turns a card
15. Go through the stock again
16. What is under the pointer?
17. Hitting a card in a column
18. Tap the stock
19. Rule 1: building a column
20. Rule 2: building a foundation
21. Move cards by the rules
22. Turn over the uncovered card
23. Find where a card goes
24. Pick up a card
25. Tap to move
26. A move counter
27. Count the moves
28. Where did you grab it?
29. Follow the pointer
30. Draw the held cards at the pointer
31. Drop it where you want
32. Drop a king into an empty column
33. A clock
34. Winning
35. You won!
36. A new game
37. The best time
38. Snapshots of the table
39. Undo
40. Build it yourself: finish by itself