🔮 Asynchronous templating in Node.js
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$ ajs

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Asynchronous templating in Node.js


  • Control flow with <% %>
  • Escaped output with <%= %> (escape function configurable)
  • Unescaped raw output with <%- %>
  • Newline-trim mode ('newline slurping') with -%> ending tag
  • Custom delimiters (e.g., use <? ?> instead of <% %>)
  • Includes
  • Static caching of intermediate JavaScript
  • Static caching of templates
  • Complies with the Express view system

☁️ Installation

You can install the package globally and use it as command line tool:

# Using npm
npm install --global ajs

# Using yarn
yarn global add ajs

Then, run ajs --help and see what the CLI tool can do.

$ ajs --help
Usage: ajs [options]

Asynchronous templating in Node.js

  -t, --tree             Output the abstract syntax tree
  -s, --source           Output the raw VM source
  -l, --locals <locals>  The template data as JSON.
  -v, --version          Displays version information.
  -h, --help             Displays this help.

  $ ajs template.ajs
  $ ajs -t template.ajs
  $ ajs -s template.ajs

Documentation can be found at https://github.com/IonicaBizau/ajs#readme.

📋 Example

Here is an example how to use this package as library. To install it locally, as library, you can do that using npm (or yarn):

# Using npm
npm install --save ajs

# Using yarn
yarn add ajs
const ajs = require("ajs");

`<% fruits.forEach(function (c) { -%>
<%= c %>s are great
<% }) %>`, {
    locals: {
        fruits: ["Apple", "Pear", "Orange"]
}, (err, data) => {
    console.log(err || data);
    // =>
    // Apples are great
    // Pears are great
    // Oranges are great

// Do some async stuff
`<% fetchData(function (err, msg) {
   if (err) { %>
     Error: <%= err.message %>
   <% } else {
    <%= msg %>
   <% } %>
<% }) %>`, {
    locals: {
        fetchData: cb => setTimeout(
            () => cb(null, "Hey there!")
          , 1000
}, (err, data) => {
    console.log(err || data);
    // =>
    // Hey there!

Get Help

There are few ways to get help:

  1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.

  2. For bug reports and feature requests, open issues. 🐛

  3. For direct and quick help, you can use Codementor. 🚀

📝 Documentation

For full API reference, see the DOCUMENTATION.md file.

😋 How to contribute

Have an idea? Found a bug? See how to contribute.

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However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:

  • Starring and sharing the projects you like 🚀

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Thanks! ❤️

🍰 Thanks

Big thanks to Evan Owen who created the initial versions of the project! Amazing stuff! 🍰

💫 Where is this library used?

If you are using this library in one of your projects, add it in this list.

📜 License

MIT © Ionică Bizău