how to convert json values in comma separated string using javascript

Answer 1

You can use for..of loop

var arr = [{
  "name": "Marine Lines",
  "location_id": 3
}, {
  "name": "Ghatkopar",
  "location_id": 2
}];

var res = [];

for ({location_id} of arr) {res.push(location_id)};

console.log(res);