Workshop › Klondike Solitaire › Step 14 of 40

Space turns a card

What we are doing

Pressing Space calls flipStock. Space normally scrolls the page, so we tell the browser not to, but only for the keys the game uses.

```js
document.addEventListener('keydown', (event) => {
  if (event.key === ' ') flipStock()
  else return
  event.preventDefault()
})
```

The function runs on every key press; event.key is the key's name, ' ' for Space.
For any other key, else return leaves at once.
event.preventDefault() stops the browser's own action for the key (scrolling).

Above function drawCardAt(...) write the listener, with an empty line between them. Run, click the game and press Space a few times.

Skills: Keyboard and mouse input