Javascript:合并对象数组，使用相同的键对值求和

var mergedObject = {};

for(var i = 0; i < objectArray.length; i++) {
    var currentObject = objectArray[i];
}

for(var key in currentObject) {
    if(currentObject.hasOwnProperty(key)) {
        if(mergedObject.hasOwnProperty(key)) {
            mergedObject[key] += currentObject[key];
        } else {
            mergedObject[key] = currentObject[key];
        }
    }
}

console.log(mergedObject);

exports.main_handler = async (event, context) => {
    var objectArray = event.objectArray;
    var mergedObject = {};

    for(var i = 0; i < objectArray.length; i++) {
        var currentObject = objectArray[i];
        for(var key in currentObject) {
            if(currentObject.hasOwnProperty(key)) {
                if(mergedObject.hasOwnProperty(key)) {
                    mergedObject[key] += currentObject[key];
                } else {
                    mergedObject[key] = currentObject[key];
                }
            }
        }
    }

    return mergedObject;
};