getComponent is not working if there is a repetition

[StefanoV1989]

I have this PID segment:
PID|1|124553|124553^^^TEST^PI~~~||JOHN^DOE|

If i use this code to get the name it works:
req.msg.getSegment('PID').getComponent(5, 1)

If i use this code to get the text "TEST", i get an empty string:
req.msg.getSegment('PID').getComponent(3, 4)

If i then remove the ~ repetition separator, then it works!

I can re-parse the message manually, but i prefer a more "elegant" solution.

const field = req.msg.getSegment('PID').getField(3, 1);
const reparse = new hl7.Parser().parseField(field);
console.log(reparse.value[0][3].toString());

Is there a bug about this, or am i wrong in something?

EDIT:

I think you can just check if you have repetition in the field adding something like this in the getComponent function.

if(components.value) components = components.value[0]; // HERE I CHECK IF I HAVE REPETITIONS       

[hitgeek]

yea, I think this is an issue. v4 has a method called getFieldComponent(3, 1, 1) https://github.com/hitgeek/simple-hl7/blob/v4.0/lib/hl7/segment.js to make this easier.

In v3 you need to use getField() and split it like pid.getField(3, 1).split('^')[0]

[StefanoV1989]

yea, I think this is an issue. v4 has a method called getFieldComponent(3, 1, 1) https://github.com/hitgeek/simple-hl7/blob/v4.0/lib/hl7/segment.js to make this easier.

In v3 you need to use getField() and split it like pid.getField(3, 1).split('^')[0]

Oh ok! I made a pull request with the fix mentioned and it works.
If you want to try it out to make a minor release just for now.

Thank you.