Handlebars

Browser

Use directly in a template :

<script id="entry-template" type="text/x-handlebars-template">
  <p>{{t "hello"}}</p>
</script>

Languages.init('fr_FR', './languages/', () => {
  var source   = $("#entry-template").html();
  var template = Handlebars.compile(source)
})

NodeJS

With Express-hbs module :

const hbs = require('express-hbs')
const Languages = require("languages-js")

Languages.init('fr_FR', './languages/') // sync
Languages.load.Handlebars(hbs)

Use settings

Example 1 :

<p>{{t "NB_MSG" nb=2}}</p>

Example 2 :

<p>{{t "you have (nb message | no message)" nb=1 if=true}}</p>