javascript - Ask a question about the caching mechanism?

As shown in the picture, occasionally when refreshing the page, an error will be reported and jquery cannot be found. Then I saw a string added after the external jqeury, resulting in the file not being found.

How can I not add a string at the end?

Is this front-end control or back-end?

Reply content:

As shown in the picture, occasionally when refreshing the page, an error will be reported and jquery cannot be found. Then I saw a string added after the external jqeury, resulting in the file not being found.

How can I not add a string at the end?

Is this front-end control or back-end?

The front-end can also be controlled, and so can the back-end, but now, it is usually the front-end. In order to prevent caching, there are special tools that add a certain number of hashes to the file....

To use hash or time I do this jquery.min.js?_=