FHIRPath Function: abs

{:.stu}

Returns the absolute value of the input (in the same type). When taking the absolute value of a quantity, the unit is unchanged. {:.stu}

Accepts input types of Integer, Long, Decimal or Quantity. {:.stu}

If the input collection is empty, the result is empty. {:.stu}

If the input collection contains multiple items, the evaluation of the expression will end and signal an error to the calling environment. {:.stu}

(-5).abs() // 5
(-5.5).abs() // 5.5
(-5.5 'mg').abs() // 5.5 'mg'

{:.stu}

Summary

• Category: Math
• Section: 5.8.1
• Return Type: Integer | Long | Decimal | Quantity
• Empty Input Result: empty
• Errors on Multiple Input: true

Description

Returns the absolute value of the input. When taking the absolute value of a quantity, the unit is unchanged.

Arguments

• none

Type Mapping

• Integer-Integer
• Long-Long
• Decimal-Decimal
• Quantity-Quantity

Example

(-5).abs() // 5
(-5.5).abs() // 5.5
(-5.5 'mg').abs() // 5.5 'mg'