title: How to replace the content of multiple tags in html-file? [Node.js]
body: <p>We have html-file:</p>
  
  <pre><code>&lt;div class="my1"&gt;MY1&lt;/div&gt;
  &lt;h1 class="my2"&gt;MY2&lt;/h1&gt;
  &lt;p class="my3"&gt;MY3&lt;/p&gt;
  &lt;div class="my2"&gt;MY2&lt;/div&gt;
  </code></pre>
  
  <p>and json-file with replace values:</p>
  
  <pre><code>{
      "my1":"new my1",
      "my2":"new my2",
      "my3":"new my3"
  }
  </code></pre>
  
  <p>In result must be new html-file with new values.</p>
  
  <p>How to do this? Without DOM!</p>