title: Javascript/lodash how to remove empty arrays
body: <p>I'm working with this structure:</p>
  
  <pre><code>[
     [
        {
           "comments":"asd",
           "movement":"Back Squat",
           "userID":"wDHZv3OL55SIymHkhMUejNleNkx1",
           "weight":"330"
        }
     ],
     [
        {
           "comments":"asd",
           "movement":"Bench Press",
           "userID":"wDHZv3OL55SIymHkhMUejNleNkx1",
           "weight":"100"
        }
     ],
     [
        {
           "comments":"Comment",
           "movement":"Clean",
           "userID":"wDHZv3OL55SIymHkhMUejNleNkx1",
           "weight":"195"
        }
     ],
     [
  
     ],
     [
  
     ],
     [
        {
           "comments":"Front squat comment alpha",
           "movement":"Front Squat",
           "userID":"wDHZv3OL55SIymHkhMUejNleNkx1",
           "weight":"315"
        }
     ],
     [
  
     ],
     [
  
     ],
     [
  
     ],
     [
  
     ],
     [
  
     ],
     [
        {
           "comments":"abc",
           "movement":"Strict Press",
           "userID":"wDHZv3OL55SIymHkhMUejNleNkx1",
           "weight":"155"
        }
     ]
  ]
  </code></pre>
  
  <p>This is the input I'm using in JSON format. As you can see there are multiple empty arrays.</p>
  
  <p>How would I go about filtering through these arrays and remove the empty ones?</p>