How do I get a list alert using javascript or jquery.

Dear all,

I've created a list dynamically using Javascript and I want to add alert notifications for this list. I want to notify people using a list whenever a list item is changed or a new item is added. I am using Sharepoint 2013 with visual Studio .Thanks in advance.

P.S. I'm new to developing solutions for SharePoint so please bear with me even if the question might seem easy.