title: How to map results within vue computed property
body: <p>Our app has multiple locations, each with an accessGroup of a, b, c, or d.
  Our users have an array of accessGroups ['a', 'c'] etc.</p>
  
  <p>On our locations page, myLocations should return the locations where the location.accessGroup is included within their accessGroup array.</p>
  
  <pre><code>computed: {
    ...mapState(['currentUser', 'locations', 'userProfile']),
  }
  myLocations: function() {
      return this.locations.filter((location) =&gt; {
        return location.accessGroup === this.userProfile.accessGroup
      })
    },
  </code></pre>