Is this a variant of the Module pattern?
<p>What is this pattern called? Is this a variant of the Module pattern? I remember there's disadvantage to this pattern and it's related to memory usage. </p>

<pre><code>var module = function() {

    this.Alert = function() {    
        alert("I'm a public");
    }

    function iamPrivate() {
         alert("not callable because I'm private");   
    }
}

var inst = new module();
inst.Alert();
</code></pre>
