If I have an array of strings, I can use the .join() method to get a single string, with each element separated by commas, like so:
.join()
[\"Joe\", \"
If object and dynamical keys: "applications\":{\"1\":\"Element1\",\"2\":\"Element2\"}
"applications\":{\"1\":\"Element1\",\"2\":\"Element2\"}
Object.keys(myObject).map(function (key, index) { return myObject[key] }).join(', ')