Syntax

	$expr.toSet()

Description

Converts the result of the evaluation of expr into a set. The following cases can occur:

1. expr is already a set: expr is returned
2. expr is any collection (e.g. list): expr is converted to a set, removing duplicate elements
3. expr is null: an Empty set is returned
4. For all other values a one-element set is created, see Pack

Parameter

Name	Type	Description	Mandatory	Default
expr	Number/string/boolean/buisness object/set	An expression whose evaluation is to be converted into a set.	yes

Return value

Type: Set

A set representing the values from expr.

Examples

Conversion of a list

	list(1, 1, 2, 3, 3).toSet()

Output: A set with the elements [1, 2, 3].

Duplicate values are removed during conversion, since sets may not contain duplicate values.

Conversion of a scalar value

	toSet(1)

Output: A set with the element [1].

Conversion of null

	toSet(null)

Output: An empty set