Why doesn't jquery assign values ​​after the first page load?

Question

JavaScript

On jsfiddle, of course, everything is loaded at once, but in the browser, as it were, it’s not like that. After the first run of the document, in jquery all the values ​​it considers and assigns are 0, lines 46-50. I refresh the page for the second time and lo and behold, everything works as it should, press ctrl + f5 and again the same song, all by zero. Why does this case not have time to process immediately before the first display of the document?

https://jsfiddle.net/Nixtone/g76c1n9d/