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Templates

In a web application that return HTML there are at least 5 languages involved.

  • The backend language. In our case it is Rust.
  • SQL to access the relational database
  • HTML
  • CSS for styling
  • JavaScript for certain client-side elements. E.g. converting the menu into the hamburger on small screens or sorting tables.

Putting all these languages in the same file creates a mess. It is much easier of we can separate them.

HTML can include CSS and JavaScript from external files and a template system can make it easy to move all the HTML out from the Rust code.

Every template system is a mini-language with variables, conditional statements, loops and some similar constructs.