Warn if at least one value not empty
<p>I have a set of form fields generated via a loop:</p>

<pre><code>foreach ($arrays as $listValue) {
    echo '
    &lt;div&gt;
       &lt;input type="text" maxlength="100" name="field[]"&gt;
    &lt;/div&gt;';
}
&lt;a href="#" id="myLink"&gt;link&lt;/a&gt;
</code></pre>

<p>I also have a link below, that when clicked calls a jQuery function. </p>

<p>I'd like to add a check and display a warning (alert is fine) if there's at least one value present in the form fields when I click my link.</p>
