Appendices

Global Variables, Functions, and Expression Operators

Visualforce pages use the same expression language as formulas—that is, anything inside {! } is evaluated as an expression that can access values from records that are currently in context.
Security Tips for Apex and Visualforce Development

The powerful combination of Apex and Visualforce pages allows Lightning Platform developers to provide custom functionality and business logic to Salesforce or to create a new standalone product running inside the Lightning Platform.
Apex Classes Used in Visualforce Controllers

This appendix includes information about the system-supplied Apex classes that can be used when building custom Visualforce controllers and controller extensions.