FHIRPath Function: all

This is a scoped function: The criteria argument is evaluated for each item (setting $this and $index before each iteration); if all return true then the function returns true, otherwise false. An empty input collection returns true.

Returns true if for every item in the input collection, criteria evaluates to true. Otherwise, the result is false. If the input collection is empty ({ }), the result is true.

generalPractitioner.all($this.resolve() is Practitioner)

This example returns true if all of the generalPractitioner elements are of type Practitioner.

Summary

• Category: Existence
• Section: 5.1.3
• Return Type: Boolean
• Empty Input Result: true
• Errors on Multiple Input: false

Description

Returns true if for every element in the input collection, criteria evaluates to true. Otherwise, the result is false.

Arguments

• criteria: expression - Expression to evaluate against each element

Type Mapping

• Any-Boolean

Example

generalPractitioner.all($this.resolve() is Practitioner)