# Dot versus Bracket Notation / Objects

Hello,

I understand this exercise except for one thing. The ** part in the code below is why the solution isn’t accepted. Instead, it’s supposed to be in bracket notation:

`return obj[checkProp];`

Can we not use dot notation for this? I prefer it, but this is more of a conceptual question. Thanks!!!

``````

function checkObj(obj, checkProp) {
if (obj.hasOwnProperty(checkProp)) {
**return obj.checkProp**;
} else {
}
}
``````

Challenge: Testing Objects for Properties

`obj.checkProp` will return `undefined` unless the object named `obj` has a property with the actual name “checkProp”.
That isn’t the case. `checkProp` is a variable.
Yeah, you can’t use dot notation like this as what you’re doing is essentially getting the property `checkProp` from `obj`. You cannot dynamically access an object’s property using dot notation. This is why the bracket notation exist, so you can dynamically access an object’s property