MAP - Iterator

Maps array children into another value

Details

The first parameter has to be an array pointer. For every array child the second parameter is evaluated and returned. To actually use the values of the children, a relative pointer should be used.

Input parameters

Name	Type	Optional	Description
iteratable	Object/Array	False	Object or Array to iterate
map function	Any	False	Value to map the child into

Output

Array: An array containing the mapped values

Usage

MAP(<iteratable>, <map function>)

Examples

Example 1

Input Document

[1,true,3,"4"]

Query

LOAD tmp
AS ('': MAP('',  STRING($'')))

Result

["1","true","3","4"]

Example 2

Input Document

[{"num":1},{"num":2},{"num":3},{"num":4}]

Query

LOAD tmp
AS ('': MAP('',  $'/num'))

Result

[1,2,3,4]