An expression is a construct that returns a value following its evaluation.
Expressions consist of operators and operands. In ⮫ Extended Structured Text (ExST), ⮫ Extended Structured Text (ExST), ⮫ Extended Structured Text (ExST), you can also use assignments as expressions. An operand can be a constant, variable, function call, or another expression.
Examples
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Evaluation of expressions