<p>Note that the MessageBox is asynchronous. Unlike a regular JavaScript <code>alert</code> (which will halt
browser execution), showing a MessageBox will not cause the code to stop. For this reason, if you have code
that should only run <em>after</em> some user feedback from the MessageBox, you must use a callback function
<p>Note that the MessageBox is asynchronous. Unlike a regular JavaScript <code>alert</code> (which will halt
browser execution), showing a MessageBox will not cause the code to stop. For this reason, if you have code
that should only run <em>after</em> some user feedback from the MessageBox, you must use a callback function