Traditional procedural programming languages typically require programmers to define an explicit "flow of control" at every stage in their programs. The Wolfram Language provides standard flow control primitives, with various symbolic extensions—though its higher-level programming paradigm usually frees programmers from having to specify the details of flow control.

Return — return from any function

Break, Continue — break, continue in procedural looping constructs

Goto, Label — largely obsolete explicit procedural flow control

Throw — "throw" any expression to be "caught" by a surrounding Catch

Confirm — confirm that evaluation of an expression does not generate a failure

Enclose — catch errors detected by Confirm, etc.

ConfirmBy  ▪  ConfirmMatch  ▪  ConfirmQuiet  ▪  ConfirmAssert

Exception — create an exception of a specific type

ThrowException — throw an exception of a specific type

CatchExceptions — catch and handle exceptions of specified types

ExceptionQ  ▪  ExceptionTypes  ▪  RegisterExceptionType  ▪  ExceptionTypeRegisteredQ

WithCleanup — do cleanup before returning the value of an expression

Abort — generate an abort

Interrupt  ▪  CheckAbort  ▪  AbortProtect  ▪  PropagateAborts

TimeConstrained, MemoryConstrained — run with constraints

Pause — pause for a specified time

Dialog — initiate a subsession dialog

Input  ▪  DialogInput  ▪  ChoiceDialog  ▪  DialogReturn