Workshop › 2048 › Step 12 of 26

Move left

What we are doing

A move slides every row of the board with slideRow and then adds a new tile. We start with left only; direction is there for the others.

```js
function move(direction) {
  for (let i = 0; i < SIZE; i++) {
    const line = board[i]
    const { row } = slideRow(line)
    board[i] = row
  }
  addTile()
}
```

What it means

For each row i, slideRow gives back a new row, which replaces the old one in the board.
const { row } = ... takes the row property out of the returned object into a variable of the same name (object destructuring).

Your turn

Write move above function cellX(col) {, with an empty line after it.

Skills: Functions

← Merge equal tiles The arrow key →

All steps