title: Remove 'value' key from nested array of objects
body: <p>I got an array like this:</p>
  
  <pre><code>rows: [
    [
      { title: 'Test', value: 1 },
      { title: 'Test2', value: 2 },
      { title: 'Test3', value: 3 },
    ],
    [
      { title: 'Test4', value: 4 },
      { title: 'Test5', value: 5 },
    ],
    [
      { title: 'Test6', value: 6 },
      { title: 'Test7', value: 7 },
    ]
  ]
  </code></pre>
  
  <p>Now I'd like to unset the key <code>value</code> in each nested object.</p>
  
  <p>At the moment I am doing:</p>
  
  <pre><code>rows.map(function(fields){
      return fields.map(function(field){
        field.value = '';
        return field;
      })
  });
  </code></pre>
  
  <p>Do you see a better way to do this?</p>