A syntax problematic

General
1

Hello Node Red forum
I need your help with a syntax problematic

v_pco="63488";
v_txt="Hallo";
test=["p[3].b[6].pco=63488", "p[3].b[6].txt=\"Hallo\"" ];
msg.payload=test;

if I send this variable with msg.payload=test; it works.
However, I would like to use v_pco and v_txt as a separate variable.
But here I have a problem with the quotation
How must the syntax be structured so that the data is passed on correctly?

2 
var v_pco="63488";
var v_txt="Hallo";
var test=[`p[3].b[6].pco=${v_pco}`, `p[3].b[6].txt="${v_txt}"`];
msg.payload=test;
return msg;

Alternatively...

var v_pco="63488";
var v_txt="Hallo";
msg.payload= {
   pco: v_pco,
   txt: v_txt,
   pcoText: `p[3].b[6].pco=${v_pco}`,
   txtText: `p[3].b[6].txt="${v_txt}"`
}
return msg;

↑ This way, you can have text and values

3

THX
it was the missing $ :pleading_face: