le regular expression with a wildcard (<code>.*</code>) for the part of the message that varies per instance.</p>
<p>Below is the same deprecation-workflow file as above, now with a regular expression on line 7 to remove some redundant messages. Note that the double quotes around <code>matchMessage</code> have also been replaced with forward slashes.</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript">window<span class="token punctuation">.</span>deprecationWorkflo