How to understand api jade?

Question

Pug

Good afternoon!
I can’t figure out api jade, I look at the doc and all the examples are too meager for simpler examples.
In general, I want to write a template on node, into which several variables will be inserted (compiled on the server side) and given to the browser.
And if you have a good article on jade api in mind, I will also be grateful if you drop it :)

Answer 1

So here it is, much easier:

var jade = require('jade');

// Compile a function
var fn = jade.compileFile('path to jade file', options);

// Render the function
var html = fn(locals);

What exactly is unclear?