Compare two numeric range in javascript
<p>I have two number range.
Lets say 1st rage is 6-9 and second is 1-15</p>

<p>I need to check that if it is conflicting. I mean if 1-15 is crossing 6-9,
Valid ranges are
1-5,
10-15
but 1-15, 2-18 like this should return me that it is violating 6-9.</p>

<p>Currently I am checking only signle digit if it falls between range,</p>

<pre><code>if (typeof (Number.prototype.isBetween) === "undefined") {
    Number.prototype.isBetween = function (min, max, notBoundaries) {
        var between = false;
        if (notBoundaries) {
            if ((this &lt; max) &amp;&amp; (this &gt; min)) between = true;
            alert('notBoundaries');
        } else {
            if ((this &lt;= max) &amp;&amp; (this &gt;= min)) between = true;
            alert('Boundaries');
        }
        alert('here');
        return between;
    }
}
</code></pre>

<p>But now I need to check range. Any help is appreciated</p>