How do I show a Map/dictionary data in nodemailer

I am using nodemailer module, and under the Html: html message goes here, I can do a string interpolation, but how would I display/render contents in a map or dictionary without specifically specifying each key.I have this as a map, sometimes it can be three pairs, I want the key and value to be rendered{Name: man, age:40}

Submitted July 30, 2019 at 11:24PM by lanrayx2