Create a constantly running method
<p>I would like to create a method that monitors the current time using momentjs and will execute <code>this.setState()</code> in a specific time, in react native.</p>

<p>I had no problems getting the current time, the problem is, that i need some kind of a method that will constantly run in the background and execute the task.</p>

<p>Something like angular's <code>$scope.watch</code> for you guys that are familiar with angular.</p>