Javascript booleans: false && true results in true
<p>I need to disable/enable  a button depending in on the value of some radio groups. These radios are populated by some groovy code becasue I'm using grails, a framework for groovy, that is a superset of java. Well that explanation was to say that the values of the radios are defined as booleans, which is just natural because they correspond to yes/no answers.</p>

<p>Now, to disable/enable this button I use some javascript, but it goes bananas with boolean values. As the title states, on some point I do a logical and between a variable that holds <code>false</code> and another variable that holds <code>true</code></p>

<p>Here is the peice of problematic code:</p>

<pre><code>var actual = true;
$('.requerido input:radio:checked').each(function() {
    console.log("actual: " + actual);
    console.log("value: " + this.value);
    console.log("actual and value: " + (actual &amp;&amp; this.value));
    actual = actual &amp;&amp; this.value;
    console.log("actual: " + actual);
});
</code></pre>

<p>As you can see I use the console.log for debugging, and this is what throws at some point:</p>

<pre><code>actual: true
value: true
actual and value: true
actual: true

actual: true
value: false
actual and value: false
actual: false

actual: false
value: true
actual and value: true
actual: true
</code></pre>

<p>So true &amp;&amp; false == false, but false &amp;&amp; true == true ? Note that the values have no quotes, so they are boolean values (I'm debugging using the Chrome console which represent strings inside double quotes, so you can distinguish between true and "true").</p>

<p>Any ideas?</p>

<p>Also, doing a manual comparison like <code>var x = true &amp;&amp; false</code> always works as expected, is juts with variables that the problem is present.</p>
