title: Split object into 2 arrays javascript
body: <p>I've got an object like that</p>
  
  <pre><code> obj =   {
      'baz':1,
      'foo':7,
      'zap':12,
      'qax':15
      }
  </code></pre>
  
  <p>I need to split it into 2 arrays</p>
  
  <pre><code>arr1 = ['baz', 'foo', 'zap', 'qax']
  arr2 = [1, 7, 12, 15]
  </code></pre>