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Defines a function.

DEF FNname[(parameterlist)] = expression
DEF FNname[(parameterlist)]
    [statementblock]
  FNname = expression
    [statementblock]
  EXIT DEF]
    [statementblock]
  END DEF

    ■ parameterlist    One or more arguments in the following form:

                       variable[( )] [AS type] [, variable[( )] [AS type]]...

                       variable    A Basic variable name.
                       type        The data type of the variable (INTEGER,
                                   LONG, SINGLE, DOUBLE, STRING, or a
                                   user-defined data type).

    ■ expression       The return value of the function.

    ■ The FUNCTION statement provides a better way to define a function.

See Also    ◄EXIT►    ◄FUNCTION►    ◄SHARED, STATIC►
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