# templar
A minimal template thing for node.js web sites to use.
Works with any template engine that works with Express.
Automatically sends ETags based on the data and the template being used,
and 304 responses based on the `If-None-Match` request header, if the
user would be getting the same exact response as last time.
## Example
```javascript
var ejs = require('ejs')
, Templar = require('templar')
, templarOptions = { engine: ejs, folder: './templates' }
// preload it. Otherwise, the first request is slow, because
// it has to load up all the templates within it.
Templar.loadFolder('./templates')
http.createServer(function (req, res) {
// note that this causes a sync fs hit the first time if
// the folder has not been loaded yet.
res.template = Templar(req, res, templarOptions)
// .. later, after figuring out which template to use ..
res.template('foo.ejs', { some: 'data', for: [ 'the', 'template'] })
//alternatively, you can add a boolean parameter to write to the response without ending it
//res.template('foo.ejs', { some: 'data', for: [ 'the', 'template'] }, false)
//just make sure you call res.end() on your own somewhere after that
}).listen(PORT)
```
## Options
* `engine`: The engine to use. EJS and Jade both work.
* `folder`: The folder where template files are found.
* `cache`: Boolean. Set to `false` to suppress 304 responses and
re-read templates without restarting the process.
## Partials
Every template will be provided with a local function
`include(file, data)`. This function will include another template via
a relative path, run it using the data provided, and return the string.
Note that this does not automatically dump the data into the calling
template! It's still the caller's responsibility to actually print out
the result.
### Example
If the template `full.ejs` contains this:
```ejs
yoyoyoyo
<%- include("partial.ejs", { partial: 1 }) %>
<%- include("partial.ejs", { partial: 2 }) %>
<%- include("partial.ejs", { partial: 3 }) %>
<%- include("partial.ejs", { partial: 4 }) %>
<%- include("partial.ejs", { partial: 5 }) %>
```
Then, in the same folder, you had a `partial.ejs` that contained:
```ejs
is for <%= partial %>
```
then the resulting output would be:
```html
yoyoyoyo
is for 1
is for 2
is for 3
is for 4
is for 5
```
Note that `full.ejs` actually prints out the result of the include call.