title: add object to nested object in lodash
body: <p>I am trying filter out the items in my object by the month and push those items into a new object.</p>
  
  <p>So the end result should look something like this</p>
  
  <p>object[
    jan:
      object-1
    feb
      object-1
      object-2
    etc.]</p>
  
  <p>I am using a array for the months like so</p>
  
  <pre><code>var monthsOfYear = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
  </code></pre>
  
  <p>Then I try and loop through that array and then the object to find the matching objects. This somewhat works but it only gives me one item in each nested object.</p>
  
  <pre><code>for (var i = 0; i &lt; monthsOfYear.length; i++) {
          var month = monthsOfYear[i];
          for (var j = 0; j &lt; response.data.length-1; j++) {
              if( _.startsWith(response.data[j].description, month) ){
                  offeringsMonth[i] = _.assign( response.data[j]);
              }
          }            
      }
  </code></pre>
  
  <p>So when I console log this I get</p>
  
  <pre><code>object[
  </code></pre>
  
  <p>jan:
      object-1
    feb
      object-1
    etc.]</p>