Prefer uglify-es

README.md

@@ -33,30 +33,7 @@ uglify(options, minifier)
 
 `options` – default: `{}`, type: `object`. [UglifyJS API options](https://github.com/mishoo/UglifyJS2#api-reference)
 
-`minifier` – default: `require('uglify-js').minify`, type: `function`. Module to use as a minifier. You can use other versions (or forks) of UglifyJS instead default one.
-
-## Warning
-
-[UglifyJS](https://github.com/mishoo/UglifyJS2), which this plugin is based on, does not support the ES2015 module syntax. Thus using this plugin with Rollup's default bundle format (`'es'`) will not work and error out.
-To work around this you can tell `rollup-plugin-uglify` to use the UglifyJS [unstable es version](https://github.com/mishoo/UglifyJS2) by passing its `minify` function to minify your code.
-```js
-import { rollup } from 'rollup';
-import uglify from 'rollup-plugin-uglify';
-import { minify } from 'uglify-es';
-
-rollup({
-    entry: 'main.js',
-    plugins: [
-        uglify({}, minify)
-    ]
-});
-```
-
-To install the experimental version of UglifyJS:
-
-```
-npm i uglify-es -D
-```
+`minifier` – default: `require('uglify-es').minify`, type: `function`. Module to use as a minifier. You can use other versions (or forks) of UglifyJS instead default one.
 
 ## Examples
 

index.js

@@ -1,21 +1,22 @@
-const minify = require('uglify-js').minify;
+const minify = require("uglify-es").minify;
 
 function uglify(userOptions, minifier) {
-    if (minifier === undefined) {
-        minifier = minify;
-    }
-    const options = Object.assign({ sourceMap: true }, userOptions);
-    return {
-        name: 'uglify',
+  if (minifier === undefined) {
+    minifier = minify;
+  }
+  const options = Object.assign({ sourceMap: true }, userOptions);
+
+  return {
+    name: "uglify",
 
-        transformBundle(code) {
-            const result = minifier(code, options);
-            if (result.error) {
-              throw result.error;
-            }
-            return result;
-        }
-    };
+    transformBundle(code) {
+      const result = minifier(code, options);
+      if (result.error) {
+        throw result.error;
+      }
+      return result;
+    }
+  };
 }
 
 module.exports = uglify;

package.json

@@ -23,7 +23,7 @@
   "author": "Bogdan Chadkin <trysound@yandex.ru>",
   "license": "MIT",
   "dependencies": {
-    "uglify-js": "^3.3.7"
+    "uglify-es": "^3.3.7"
   },
   "devDependencies": {
     "jest": "^22.1.4",

test/fixtures/unminified.js

@@ -2,5 +2,5 @@
 var a = 5;
 
 if (a < 3) {
-	console.log(4);
+  console.log(4);
 }

test/test.js

@@ -62,15 +62,15 @@ test("allow passing minifier", async () => {
 });
 
 test("throw error on uglify fail", async () => {
-  const bundle = await rollup({
-    input: "test/fixtures/failed.js",
-    plugins: [
-      uglify({}, () => ({
-        error: Error("some error")
-      }))
-    ]
-  });
   try {
+    const bundle = await rollup({
+      input: "test/fixtures/failed.js",
+      plugins: [
+        uglify({}, () => ({
+          error: Error("some error")
+        }))
+      ]
+    });
     await bundle.generate({ format: "es" });
     expect(true).toBeFalsy();
   } catch (err) {

yarn.lock

@@ -2556,6 +2556,13 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+uglify-es@^3.3.7:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.7.tgz#d1249af668666aba7cb1163e277455be9eb393cf"
+  dependencies:
+    commander "~2.13.0"
+    source-map "~0.6.1"
+
 uglify-js@^2.6:
   version "2.8.27"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.27.tgz#47787f912b0f242e5b984343be8e35e95f694c9c"
@@ -2565,13 +2572,6 @@ uglify-js@^2.6:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
-uglify-js@^3.3.7:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.7.tgz#28463e7c7451f89061d2b235e30925bf5625e14d"
-  dependencies:
-    commander "~2.13.0"
-    source-map "~0.6.1"
-
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"