This is a known problem/feature with the console log in some browsers.
When you log something, it may not immediately be turned into text format. If the log stores a reference to the object that you log, it will be turned into text format when it's actually shown in the log.
This has the advantage that logging something has a very small impact on performance, until you actually open the log window to show the log.
Even if you have the log window open while you run the code, there is no updates happening while your function is running (as Javascript is single threaded), so the console window will show the values as they are at the end of the function, when the window is updated.
