Literals,
operators, comments, keywords, identifiers, line terminators, and
white space come together to form a list of expressions, even if
the list only contains a single expression. In general, each expression
in the list resolves to a value, and the value of the list as a
whole is the value of the last expression in the list.
For example, consider the following scenario of two fields on
a form design:
Field name
|
Calculations
|
Returns
|
Field1
|
5 + Abs(Price)
"Hello World"
10 * 3 + 5 * 4
|
50
|
Field2
|
10 * 3 + 5 * 4
|
50
|
The value of both
Field1
and
Field2
after
the evaluation of each field’s expression list is
50
.
FormCalc divides the various types of expressions that make up
an expression list into the following categories:
|
|
|