jQuery(selector).contains throws "no method" TypeError?
<p>my HTML:</p>

<pre><code>&lt;form&gt;
    &lt;input type="text" name="url" maxlength="10" /&gt;
&lt;/form&gt;
</code></pre>

<p>my JS:</p>

<pre><code>$(document).ready(function(){
    var inputUrl =  $('input[name=url]');
    inputUrl.change(function() {
        alert(inputUrl);
        if ($(inputUrl).contains('watch'))
        {
            alert ('Contains watch: yes');
        }
        else
        {
            alert ('Contains watch: no');
        }
    });
});
</code></pre>

<p>Chrome Console shows:</p>

<pre><code>Uncaught TypeError: Object [object Object] has no method 'contains'
</code></pre>

<p>What's the correct syntax for:</p>

<p><code>if ($(inputUrl).contains('watch'))</code></p>
