Return of figuring out the function nearestStamp(fractionScrubbed){}

[danielfae]

The line #84 of the script.js

return timestamps[timestamps.length - 1];

I don't understand why if it is in the code and I run nearestStamp in the console as follows:
nearestStamp(scrubBar.fractionScrubbed) I receive the correct timestamp. Shouldn't it return the result of line #84?

To resume:
The function nearestStamp(fractionScrubbed) does return just the return timestamps[i]; but later is told to return return timestamps[timestamps.length - 1];. Thats the line I have the issue on.