why does console.log() show the new value even when I call it before the I update the array?

Question

I have MyObject{internalArray:["ds","sdfs"]}

Then I call console.log(MyObject.internalArray)

Then I do MyObject.internalArray.push("weird?")

I expect output: ["ds","sdfs"]

Why do I get output: ["ds","sdfs","weird?"]

Is it something to do with hoisting?