get all id from array of objects javascript

1array.map(s=>s.id)

1function getFields(input, field) {
2    var output = [];
3    for (var i=0; i < input.length ; ++i)
4        output.push(input[i][field]);
5    return output;
6}
7
8var result = getFields(objArray, "foo"); // returns [ 1, 3, 5 ]
9

1//Getting One Value from an Array of Items or sum of array
2var numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
3var total = numbers.reduce(function(total, current) {
4    return total + current;
5}, 0);
6
7console.log(total);