Two solutions to browser cache problems such as js, css, and img

Details determine success or failure! The significance of browser cache is to improve the execution efficiency, but it also brings some problems. As a result, the server modifies js and css, and the client cannot update
Method 1 generate random numbers
Copy codeThe Code is as follows:
<Script type = "text/javascript" src = "/js/test. js? + Math. random () "> </script>

Disadvantage: the browser cache is meaningless and is dynamically loaded every time.

Method 2: control the version number and set global variables. Add 1 to the version number before each release.
Copy codeThe Code is as follows:
<Script type = "text/javascript" src = "/js/test. js? V = <% = v %> "> </script>

This method is recommended, which is relatively simple. The disadvantage is that HTML pages cannot be used, but such pages should not be too many.

More Methods: it is automatically implemented by reading the file size and file modification time to generate MD5. When the program is automatically built, it compresses and merges JavaScript and replaces the version globally. The method is complex. If you are interested, you can study it.

Who else has a better way?