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refactor: upgrade to uglifyes v3.0.0 #54

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refactor: upgrade to uglifyes v3.0.0 #54

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16 changes: 1 addition & 15 deletions README.md
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Expand Up @@ -12,7 +12,7 @@
src="https://cdn.rawgit.com/webpack/media/e7485eb2/logo/icon.svg">
</a>
<h1>UglifyJS Webpack Plugin</h1>
<p>This plugin uses <a href="https://github.com/mishoo/UglifyJS2/tree/v2.x">UglifyJS v2</a> to minify your JavaScript.<p>
<p>This plugin uses <a href="https://github.com/mishoo/UglifyJS2/tree/harmony">UglifyES v3</a> to minify your JavaScript.<p>
</div>

> Note that webpack contains the same plugin under `webpack.optimize.UglifyJsPlugin`. This is a standalone version for those that want to control the version of UglifyJS. The documentation is valid apart from the installation instructions in that case.
Expand All @@ -31,20 +31,6 @@ With npm:
npm install uglifyjs-webpack-plugin --save-dev
```

**Important!** The plugin has a peer dependency to uglify-js, so in order to use the plugin, also uglify-js has to be installed. The currently (2017/1/25) available uglify-js npm packages; however, do not support minification of ES6 code. In order to support ES6, an ES6-capable, a.k.a. _harmony_, version of UglifyJS has to be provided.

If your minification target is ES6:

```bash
yarn add git://github.com/mishoo/UglifyJS2#harmony-v2.8.22 --dev
```

If your minification target is ES5:

```bash
yarn add uglify-js --dev
```

<h2 align="center">Usage</h2>

```javascript
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2 changes: 1 addition & 1 deletion package.json
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Expand Up @@ -46,7 +46,7 @@
},
"dependencies": {
"source-map": "^0.5.6",
"uglify-js": "^2.8.29",
"uglify-es": "^3.0.19",
"webpack-sources": "^1.0.1"
},
"devDependencies": {
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2 changes: 1 addition & 1 deletion src/index.js
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Expand Up @@ -10,7 +10,7 @@ const RawSource = require("webpack-sources").RawSource;
const ConcatSource = require("webpack-sources").ConcatSource;
const RequestShortener = require("webpack/lib/RequestShortener");
const ModuleFilenameHelpers = require("webpack/lib/ModuleFilenameHelpers");
const uglify = require("uglify-js");
const uglify = require("uglify-es");

class UglifyJsPlugin {
constructor(options) {
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11 changes: 9 additions & 2 deletions yarn.lock
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Expand Up @@ -950,7 +950,7 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
dependencies:
delayed-stream "~1.0.0"

commander@^2.8.1:
commander@^2.8.1, commander@~2.9.0:
version "2.9.0"
resolved "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
dependencies:
Expand Down Expand Up @@ -3655,7 +3655,14 @@ typedarray@^0.0.6:
version "0.0.6"
resolved "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"

uglify-js@^2.6, uglify-js@^2.8.27, uglify-js@^2.8.29:
uglify-es@^3.0.19:
version "3.0.19"
resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.0.19.tgz#53d448ddf59770c1eafbe2e257a27e2f4851d0e5"
dependencies:
commander "~2.9.0"
source-map "~0.5.1"

uglify-js@^2.6, uglify-js@^2.8.27:
version "2.8.29"
resolved "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
dependencies:
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