What is this script tag?

Question

I had never seen it used like this:

<script src="{{ file.name_js }}"></script> 

It is better?

Answer 1

This is something from a template engine such as Smarty or similar.

Everything between the brackets {{ }} processed on the server side, it is likely that the script files can be easily minimized on the server side and the file name has been updated to a mini version or something from a variable.

Answer 2

Looks like somekind template language . For example, Django has the same tags.

Answer 3

It seems to me that in some form of parsing a template in which something inside {{ }} will be replaced with a specific value on the server side.