title: Defining constants in HTML
body: <p>I have mulitple tables across 3 HTML pages , the heading of these tables are to remain same i.e .</p>
  
  <pre><code>&lt;thead&gt;
  &lt;tr&gt;
   &lt;th&gt;MyHeading&lt;/th&gt;
  &lt;/tr&gt;
  &lt;/thead&gt;
  </code></pre>
  
  <p>I want to store the <code>MyHeading</code> string in a constant and use it across HTML pages in all my tables.
  I am constrained to use pure HTML and javascript.
  How do i do this in pure HTML i.e. storing static text in some constants so that I could reuse them across HTML pages</p>