title: lodash assign a field in each object in array
body: <p>I have an array that contains a lot of objects that looks like this: </p>
  
  <pre><code>obj = {name: 'Hello', isUpdated:false};
  </code></pre>
  
  <p>Now, I wish to use <code>lodash</code> to assign all <code>isUpdated</code> variables from <code>false</code> to <code>true</code>.</p>
  
  <p>I have been looking at their documentation and found: </p>
  
  <pre><code>_.assignIn(object, [sources])
  </code></pre>
  
  <p>However, I'm not quite sure it's what I needed. Maybe I need to combine two different methods?</p>
  
  <p>I was hoping that some of you guys may know, thanks.</p>