Update variable when value is present
<p>I have a simple string of code. I want to show a default value when the page is loaded where the function <code>numResults()</code> is. At some point I want to update <code>numResults()</code> with a new value and then change the string without reloading the page.</p>

<pre><code>$('#step1').before('Showing results 1 - ' + numResults());

function numResults(value) {
    var results = 10; // default number

    if (value) {
        return value; // show updated value
    } else {
        return results; // show default
    }
}
</code></pre>
