Can't access object property, even though it shows up in a console log

Question

Below, you can see the output from these two logs. The first clearly shows the full object with the property I\'m trying to access, but on the very next line of code, I can\

Answer 1

Just in case this is helpful for someone, I had a similar problem, and it's because someone created an override for .toJSON in the object I was working with. So the object was something like:

{
  foo: {
         bar: "Hello"
         baz: "World"
       }
}

But .toJSON() was:

toJSON() {
  return this.foo
}

So when I called JSON.stringify(myObject) it returned "{"bar": "Hello", "baz": "World"}". However, Object.keys(myObject) revealed the "foo".