title: Filtering array where property contains string
body: <p>I'm trying to filter some JSON data to search for job roles that starts with a certain string.</p>
  
  <p>The JSON looks like :</p>
  
  <pre><code>"periods": [
          {
              "periodName": "Week1",
              "teamName": "Tango",
              "roleName": "SoftwareEngineerII",
              "roleExperience": "2",
              "id": "cc1f6e14-40f6-4a79-8c66-5f3e773e0929"
          },
          ...
      ]
  </code></pre>
  
  <p>I want to filter for roleName that starts with "Software" so that I can see a list of all Software Engineer levels, and it filters out other roles.</p>
  
  <p>I'm not sure how to do a "starts with" or "contains" here.</p>