title: How to change figcaption by JQuery
body: <p>I have a figure, which contain the image. Source of image can change. So I need to change the figcaption and make it equal the title of image. Is there any way how to do it?</p>
  
  <pre><code>&lt;figure&gt;&lt;img id="largeImg" src="https://js.cx/gallery/img1-lg.jpg" align="middle"&gt;
    &lt;figcaption&gt;Image caption&lt;/figcaption&gt;
    &lt;/figure&gt;
  </code></pre>