title: How do you use jQuery filter() on an attribute that is not a class or id
body: <p>I want to filter based on an attribute called "level".</p>
  
  <p>Where I have written -- something here -- I don't know what to do to reference the level attribute. If it was an id attribute I would do #idName if it was a class I would do .className. </p>
  
  <p>I am not sure what to do to select the level attribute.</p>
  
  <blockquote>
    <p>$(".myClass").filter(--something here to reference the level attribute --).remove();</p>
  </blockquote>