Variable Naming Conventions

When naming variables, use the following recommended format.

[Scope]TypeVariableName

Parameters

• [ Scope]
  Specifies a character that indicates the range of reference for the variable.

  The following table lists suggested values for Scope.

  Scope	Description
  l	Local
  t	Parameter
  g	Public (Global)
  p	Private (Default)

  Note

  In some cases, explicit scoping does not apply. For example, in the main program of a standalone application, there is no difference in visibility for variables scoped as PUBLIC or PRIVATE. In sample programs, the type prefix is always relevant and required.

• Type
  Specifies a character that indicates the data type of the variable.

  The following table lists suggested values for Type.

  Type	Description
  a	Array
  c	Character, Varchar, Varchar (Binary)
  y	Currency
  d	Date
  t	DateTime
  b	Double
  f	Float
  l	Logical
  n	Numeric
  o	Object
  q	Varbinary, Blob
  u	Unknown

• VariableName
  Specifies the name of the variable.

Example

The following example illustrates how the letter "n" indicates that the Counter variable has Numeric type and local scope:

nCounter
lnCounter

See Also

Concepts

Creating Visual FoxPro Names

Reference

Constant Naming Conventions

Object Naming Conventions

Table Field Naming Conventions

Window Naming Conventions

Other Resources

Naming Conventions