title: javascript remove html tags but not content within them and not <a > tags with regex
body: <p>how to remove all tags in a string but not <code>&lt;a&gt;</code>? and not the text inside them?</p>
  
  <p>For example: <code>&lt;em&gt;Bold&lt;/em&gt;&lt;a&gt;Go here&lt;/a&gt;</code> should be: <code>Bold&lt;a&gt;Go here&lt;/a&gt;</code></p>