how to remove a key from a JavaScript object?
<p>Let's say we have an array with this format:</p>

<pre><code>var thisIsObject= {
   'Cow' : 'Moo',
   'Cat' : 'Meow',
   'Dog' : 'Bark'
};
</code></pre>

<p>i wanted to do a function that removes by key:</p>

<pre><code>removeFromObjectByKey('Cow');
</code></pre>
