# es6-templates
Compiles JavaScript written using template strings to use ES5-compatible
syntax. For example, this:
```js
var name = "Nicholas",
msg = `Hello, ${name}!`;
console.log(msg); // "Hello, Nicholas!"
```
compiles to this:
```js
var name = "Nicholas",
msg = "Hello, " + name + "!";
console.log(msg); // "Hello, Nicholas!"
```
For more information about the proposed syntax, see the [TC39 wiki page on
template strings](http://tc39wiki.calculist.org/es6/template-strings/).
## Install
```
$ npm install es6-templates
```
## Usage
```js
$ node
> var compile = require('es6-templates').compile;
> compile('`Hey, ${name}!`')
{ 'code': ..., 'map': ... }
```
Without interpolation:
```js
`Hey!`
// becomes
'"Hey!"'
```
With interpolation:
```js
`Hey, ${name}!`
// becomes
"Hey, " + name + "!"
```
With a tag expression:
```js
escape `<a href="${href}">${text}</a>`
// becomes
escape(function() {
var strings = ["\u003Ca href=\"", "\"\u003E", "\u003C/a\u003E"];
strings.raw = ["\u003Ca href=\"", "\"\u003E", "\u003C/a\u003E"];
return strings;
}(), href, text);
```
Or work directly with the AST:
```js
$ node
> var transform = require('es6-templates').transform;
> transform(inputAST)
```
Transforming ASTs is best done using [recast][recast] to preserve formatting
where possible and for generating source maps.
## Browserify
Browserify support is built in.
```
$ npm install es6-templates # install local dependency
$ browserify -t es6-templates $file
```
## Contributing
[![Build Status](https://travis-ci.org/esnext/es6-templates.svg?branch=master)](https://travis-ci.org/esnext/es6-templates)
### Setup
First, install the development dependencies:
```
$ npm install
```
Then, try running the tests:
```
$ npm test
```
### Pull Requests
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request
Any contributors to the master es6-templates repository must sign the
[Individual Contributor License Agreement (CLA)][cla]. It's a short form that
covers our bases and makes sure you're eligible to contribute.
[cla]: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1
When you have a change you'd like to see in the master repository, [send a pull
request](https://github.com/esnext/es6-templates/pulls). Before we merge
your request, we'll make sure you're in the list of people who have signed a
CLA.
[recast]: https://github.com/benjamn/recast