title: Find Exact Match From Page Using Javascript Regex
body: <p>How to find exact match from my whole html.Below is the detail explanation.
  Suppose i have html like below:</p>
  
  <pre><code>&lt;html&gt;
  &lt;body&gt;
  .....
  &lt;table&gt;
  &lt;tr&gt;
  &lt;td&gt;
  This is my linenumber
  &lt;/td&gt;
  &lt;td&gt;
  number
  &lt;/td&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  .....
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>Here i want to replace 'number' word.
  i can do this using <code>.replace(/number/g,'newnumber')</code> but by using this it is also changing value in 'This is my linenumber' statement, it will also convert this statement to 'This is my linenewnumber'.</p>
  
  <p>I don't want to do it. I only need to change where there is single 'number',not with any word.</p>