title: Arrays `lineControl.every()` function returns undefined
body: <pre><code>const GAME_STATE = {
      'board': [
          [1, 1, 1],
          [null, null, null],
          [null, null, null]
      ],
      'overControl': false
  }
  
  ...
  
  function lineControl() {
      const { board } = GAME_STATE;
      board[0].every(e =&gt; e === 1);
  }
  </code></pre>
  <p>I'm trying to make a Tic-Tac-Toe but my lineControl() funxtion returns <code>null</code></p>