Workshop › Sudoku › Step 24 of 28

Best time

What we are doing

The fastest solve is saved in localStorage, but only if no hint was used. The best time and the hints so far are shown on the right.

```js
let best = Number(localStorage.getItem('sudoku-best')) || 0

  const seconds = Math.floor(frames / 60)
  if (hints === 0 && (best === 0 || seconds < best)) {
    best = seconds
    localStorage.setItem('sudoku-best', best)
  }

  ctx.textAlign = 'right'
  ctx.fillText('Best ' + (best ? clock(best) : '-') + '  Hints ' + hints, canvas.width - LEFT, 34)
```

What it means

• For time, smaller is better: a solve is a record when there is none yet (best === 0) or it is faster.
• Only solves with 0 hints count.
• best ? clock(best) : '-' shows a dash until there is a record.

Your turn

1. Under let hints, write best.
2. At the end of checkWin, save the record.
3. In draw, under the Time line, write the right-aligned line.

Skills: Game states

← Hints N for a new puzzle →

All steps

1. Nine by nine
2. Lines and boxes
3. A puzzle from a string
4. The puzzle's own digits
5. Keep drawing
6. The selected cell
7. Light up row, column and box
8. The same digit everywhere
9. Click to select
10. Move with the arrows
11. Write digits
12. The three rules in one loop
13. Show mistakes
14. Solved!
15. A clock
16. The solved message
17. Play again
18. The easiest cell
19. The solver
20. Random order
21. Invent a puzzle
22. A new puzzle every game
23. Hints
24. Best time
25. N for a new puzzle
26. A number pad
27. Tap the pad
28. Build it yourself: undo