问使用Keys Javascript在ForEach中增加自身的价值

EN

var awards = [
  { Department: "AL", Money: 100 }, 
  { Department: "AL", Money: 100 },
  { Department: "OB", Money: 200 }, 
  { Department: "AL", Money: 100 },
  { Department: "OB", Money: 200 }
];

var myObj = {},
    array1 = [],
    sum = 0,
    array2 = [],
    myObj2 = {};
var activeDepartments = ["AL", "OB"];
//FOREACH
Object.keys(awards).forEach(function(key, index) {
    var department = awards[key].Department;
    var money = awards[key].Money;
    sum = 0;

    // console.log(this[index].Money);
    if (activeDepartments.indexOf(department) !== -1) {
        sum += this[index].Money;
        myObj[department] = sum;
    }
    //console.log(index);

}, awards);
array1.push(myObj); //PUSH OBJECT TO ARRAY
console.log(array1);

//trying to get object to look like this: [{AL:300}, {OB:400}]