title: Set all Object keys to false
body: <p>Lets say I have an object</p>
  
  <pre><code>  filter: {
      "ID": false,
      "Name": true,
      "Role": false,
      "Sector": true,
      "Code": false
    }
  </code></pre>
  
  <p>I want to set all keys to false (to reset them). What's the best way to do this, I'd like to avoid looping with <code>foreach</code> and stuff. Any neat one liner?</p>