FHIRPath Function: take

Returns a collection containing the first num items in the input collection, or less if there are less than num items. If num is less than or equal to 0, or if the input collection is empty ({ }), take returns an empty collection.

Summary

• Category: Subsetting
• Section: 5.3.7
• Return Type: collection
• Empty Input Result: empty
• Errors on Multiple Input: false

Description

Returns a collection containing the first num items in the input collection, or less if there are less than num items. If num is less than or equal to 0, take returns an empty collection.

Arguments

• num: Integer - Number of items to take

Type Mapping

• Any-Any

Example

Patient.name.take(2) // takes the first 2 name elements