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