Garlic.js | Automatically persist your forms ' text and select field | iOS library

I have an html here which executes a simple alarm based on the input time. I'm running nodejs webserver and this is my index.html

My problem is after clicking the "set alarm" button the function initiates but of course after reloading the page everything is gone. I've read about local storage but I don't know how to implement it in this scenario. I tried using garlic.js but only works on input forms like text field and checkboxes, not a button that executes a function.