JavaScript对象的属性未定义

Question

I have an object that has properties, but when I try to access them, it always returns undefined.

Using Chrome, I attached the object to window and in the console, if I do, window.country

It returns this object:

[ Object
currency_code: null
iso: "USA"
iso3: "USA"
name: "USA"
states: Array[51]
__proto__: Object
]

However, when I try to access a property, such as window.country.iso it's undefined. Any ideas why this would be?

Thank you!

Answer 1

Your window.country object is actually an array.

Chrome's console is showing you that. As you can see your object is wrapped in [] , that means it's in an array.

Try to access it like: window.country[0].iso .