How to append timestamp to the javascript file in [removed] tag url to avoid caching

Question

I want to append a random number or a timestamp at the end of the javascript file source path in so that every time the page reloads it should download a fresh copy.

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Answer 1

Replace regular expression if not alphanumeric Date.prototype.toISOString()

var today = new Date();
"MyFile_" + today.toISOString().replace(/[^\w]/g, "") + ".pdf"

MyFile_20191021T173426146Z.pdf

Answer 2

Load scripts manually or with jQuery http://api.jquery.com/jQuery.getScript/. It also provides option to prevent chaching