# UglifyES Plugin

## Description
Compresses the javascript code by using [UglifyES](https://github.com/mishoo/UglifyJS2/tree/harmony).

Unlike the **UglifyJS** plugin, the **UglifyES** plugin supports ES2015+ (ES6+) code.

## Install

This package depends on the `uglify-es` package.

```bash
# Using yarn:
yarn add uglify-es --dev

# Using npm:
npm install uglify-es --save-dev
```

## Usage

### Setup
Import from FuseBox

```js
const { UglifyESPlugin } = require("fuse-box");
```

Inject into a chain

```js
fuse.plugin(
     UglifyESPlugin()
)
```

Or add it to the main config plugins list to make it available across bundles

```js
FuseBox.init({
    plugins : [
         UglifyESPlugin()
    ]
});
```

## Options
The plugin accepts an object that is the original `UglifyES` options as a parameter. For example:
```js
FuseBox.init({
    plugins: [
        UglifyESPlugin({
            mangle: {
                toplevel: true,
                screw_ie8: true
            }
        })
    ]
});
```