title: How to force close a ngx-contextmenu in angular?
body: <p>In my angular project, I have an <code>ngx-contextmenu</code>. </p>
  
  <p>I have a component, and in the component's template there is a code like:</p>
  
  <pre><code>&lt;div... [contextMenu]="basicMenu"&gt;
  &lt;context-menu&gt;.....
  &lt;/div&gt;
  </code></pre>
  
  <p>Now, my component, which has this context menu, is destroyed after a while! </p>
  
  <p>But, the context menu is still on the screen even though the component is destroyed!! </p>
  
  <p>So, my question is, how to force close this context menu when my component is destroyed?!</p>
  
  <p>Thanks in advance! </p>