Function: useDisplayCqfAndCalculatedExpression()
useDisplayCqfAndCalculatedExpression(
qItem,from):string|null
Returns the value of a cqf-expression, calculatedExpression or ItemTextAriaLabelExpression.
- If no expression is found → returns null.
- If the value is null → returns an empty string.
- If the value is a string or number → returns it as a string.
Parameters
| Parameter | Type | Description |
|---|---|---|
qItem | QuestionnaireItem | The questionnaire item. |
from | "item" | "item._text" | "item._text.aria-label" | "item._prefix" | "item._answerValueSet" | The expression source (e.g. 'item._text', 'item._text.aria-label', 'item._prefix') |
Returns
string | null
The display value as a string, empty string, or null.