title: lodash map returning array of objects
body: <p>i have a arrray of objects where i wish to convert the data from medicine to type string. The only problem is instead of returning the array of objects is returing me the array of medicine.</p>
  
  <p>Example
  input:</p>
  
  <pre><code>data = [{medicine: 1234, info: "blabla"},{medicine: 9585, info: "blabla"},..]
  </code></pre>
  
  <p>desired output:</p>
  
  <pre><code>data = [{medicine: "1234", info: "blabla"},{medicine: "9585", info: "blabla"},..]
  </code></pre>
  
  <p>What im getting?
  Array of medicine numbers.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>var dataMedicines = _.map(data, 'medicine').map(function(x) {
                  return typeof x == 'number' ? String(x) : x;
              });
  </code></pre>