title: Extract a section of many objects in an array
body: <p>If I have array of objects like this</p>
  
  <pre><code>[
      {
          "name" : "some name",
          "more data" : "data",
          ...
      },
      {
          "name" : "another name",
          "more data" : "data",
          ...
      },
      ...
  ]
  </code></pre>
  
  <p>And I want to copy the array, but only the name element in the object so that I have this:</p>
  
  <pre><code>[
      {
          "name" : "some name",
      },
      {
          "name" : "another name",
      },
      ...
  ]
  </code></pre>
  
  <p>Is there a short hand way to do this without writing a loop?</p>