core.hl7field.getcomponent | Medplum
Hl7Field.getComponent() method
Returns an HL7 component by index.
Note that the index is 1-based, not 0-based.
For example, to get the first component, use getComponent(1). This aligns with HL7 component names such as MSH.9.2.
Signature:
getComponent(component: number, subcomponent?: number, repetition?: number): string;
Parameters
| Parameter | Type | Description |
|---|---|---|
| component | number | The component index. |
| subcomponent | number | (Optional) Optional subcomponent index. |
| repetition | number | (Optional) Optional repetition index. |
Returns:
string
The string value of the specified component.