Syntax

	$set.map($func)

Description

Applies the function func to each element of the set and returns the set of evaluation results.

Used when the result of the mapping is relevant. If the side effect (see Transactions) of the function func is to be considered instead, then foreach() is used as an alternative.

If the result of the function is a set, then the result set must be flattened afterwards, since sets of sets are not supported as final results of expressions

Parameters

Name	Type	Description	Mandatory	Default
set	Set	A set to whose elements func should be applied to.	yes
func	Function	Function to be applied to all elements of set.	yes

Return value

Type: Set

A set containing all evaluation results of the function func for all elements in set.

Examples

Addition

	list(1, 4, 9)
  .map(x -> $x + 5)

Output: A set with the elements [6, 9, 14].