Use of PnP JS Core JavaScript Library

In SharePoint on-premise, to perform various basic custom operations on SharePoint lists or libraries CAML/XML-based featureĀ is used. Later, these operations are provided using the client-side object model (CSOM), REST API, etc. In Microsoft SharePoint Online and Microsoft Office 365, various operations are served through remote provisioning technique, i.e. CSOM. Customization is provisioned in full trust code solutions or sandbox solutions.