Revise template engines guide for Expressa

en/guide/using-template-engines.md

@@ -1,52 +1,4 @@
----
-layout: page
-title: Using template engines with Express
-description: Discover how to integrate and use template engines like Pug, Handlebars, and EJS with Express.js to render dynamic HTML pages efficiently.
-menu: guide
-order: 5
-redirect_from: "/guide/using-template-engines.html"
----
-
-# Using template engines with Express
-
-A _template engine_ enables you to use static template files in your application. At runtime, the template engine replaces
-variables in a template file with actual values, and transforms the template into an HTML file sent to the client.
-This approach makes it easier to design an HTML page.
-
-The [Express application generator](/{{ page.lang }}/starter/generator.html) uses [Pug](https://pugjs.org/api/getting-started.html) as its default, but it also supports [Handlebars](https://www.npmjs.com/package/handlebars), and [EJS](https://www.npmjs.com/package/ejs), among others.
-
-To render template files, set the following [application setting properties](/{{ page.lang }}/4x/api.html#app.set), in the default `app.js` created by the generator:
-
-* `views`, the directory where the template files are located. Eg: `app.set('views', './views')`.
-This defaults to the `views` directory in the application root directory.
-* `view engine`, the template engine to use. For example, to use the Pug template engine: `app.set('view engine', 'pug')`.
-
-Then install the corresponding template engine npm package; for example to install Pug:
-
-```bash
-$ npm install pug --save
-```
-
-<div class="doc-box doc-notice" markdown="1">
-Express-compliant template engines such as Pug export a function named `__express(filePath, options, callback)`,
-which `res.render()` calls to render the template code.
-
-Some template engines do not follow this convention. The [@ladjs/consolidate](https://www.npmjs.com/package/@ladjs/consolidate)
-library follows this convention by mapping all of the popular Node.js template engines, and therefore works seamlessly within Express.
-</div>
-
-After the view engine is set, you don't have to specify the engine or load the template engine module in your app;
-Express loads the module internally, for example:
-
-```js
-app.set('view engine', 'pug')
-```
-
-Then, create a Pug template file named `index.pug` in the `views` directory, with the following content:
-
-```pug
-html
-  head
+mahol pura wavyyy
     title= title
   body
     h1= message