Ternary to return undefined?
<p>I want to include a property on an object only in the event that a variable is defined. I don't want the property at all otherwise. I don't even want it to equal a blank string. I'm thinking something like this:</p>

<pre><code>someFunc({
    bing: "bing",
    bang: (myVar) ? myVar : undefined,
    boom: "boom"
    }, "yay");
</code></pre>

<p>In the event that <code>myVar</code> is undefined, I want this to result in the same thing as the below:</p>

<pre><code>someFunc({
    bing: "bing",
    boom: "boom"
    }, "yay");
</code></pre>

<p>Am I doing it right?</p>
