Object.assign
更新後的物件 = Object.assign(預設的物件，預更新的物件);
let resultObject = {};
const defaultObject = {
'title': value,
'title1': value
};
const updateObject = {
'title1': value1,
'title2': value2
};
resultObject = Object.assign(defaultObject, updateObject);
console.log(resultObject);
//輸出
{
'title': value,
'title1: value1,
'title2': value2
}
