How to convert each value of an array object into single string?

Array Given:

const Collection = [{ id: 1 }, { id: 3 }, { id: 2 }, { id: 4 }]

Required String should be:

string = "1,3,2,4"

I have tried to get from forEach() loop to join() each value and save it in a string variable.

expecting result should be a comma separated string.

>Solution :

You can use forEach, but you would have to pair it with something else.

const Collection = [{ id: 1 }, { id: 3 }, { id: 2 }, { id: 4 }];
var res = [];

Collection.forEach(function(item) {
    res.push(item.id);
});

res = res.join(",");
console.log(res);