Javascript 将数据对象代码中缺失的属性添加到单个对象不起作用

我有一个具有键-值对的数据对象.数据对象包括4个具有相应值的属性.然而，从接口中拉取数据时，有时会显示2到3个属性，如下图所示(如果某个属性的数据不可用，则不会显示在对象中).我想将缺少的属性重新添加到同一个对象中，如下所示.

Data Output

var obj = {
  property1: 100
  property2: 80
  property3: 50
}

我想在物体if property4 exists内进行判断.如果不是，则可以将其添加到布尔值为False的同一对象中

My code that checks all properties whether they are missing, but it is not working as expected个

var obj = {
  property1: 100,
  property2: 80,
  property3: 50
}
;

const property_1 = obj.hasOwnProperty('property1');
console.log(property_1);
const property_2 = obj.hasOwnProperty('property2');
console.log(property_2);
const property_3 = obj.hasOwnProperty('property3');
console.log(property_3);
const property_4 = obj.hasOwnProperty('property4');
console.log(property_4);

if (property_1 === false || property_2 === false || property_3 === false || property_4 === false)  {

obj.property1 = false
obj.property2 = false
obj.property3 = false
obj.property4 = false
 
} 

console.log(obj)

//Console Output

{
  property1: false,
  property2: false,
  property3: false,
  property4: false
}

My Expected Result is:

{
  property1: 100,
  property2: 80,
  property3: 50,
  property4: false // Does not exist, hence it is false 
}

我可以知道我错在哪里吗？