Various Functions with JSOM

Creating a List Item Using ECMAScript (JavaScript, JScript) 

https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/hh185011(v%3doffice.14)

How to: Retrieve Lists Using JavaScript

https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/hh185009(v%3doffice.14)

How to: Create, Update, and Delete Lists Using JavaScript

https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/hh185005(v%3doffice.14)

How to: Break Role Assignment Inheritance Using JavaScript

https://docs.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/hh185013(v%3doffice.14)