actually use terser

package.json

@@ -69,7 +69,7 @@
     "rollup-plugin-filesize": "^6.0.1",
     "rollup-plugin-node-resolve": "^4.0.1",
     "rollup-plugin-replace": "^2.1.0",
-    "rollup-plugin-uglify": "^6.0.2",
+    "rollup-plugin-terser": "^4.0.4",
     "serializr": "^1.5.1",
     "shelljs": "^0.8.3",
     "size-limit": "^0.21.1",

scripts/build.js

@@ -2,7 +2,7 @@ const { rollup } = require("rollup")
 const resolvePlugin = require("rollup-plugin-node-resolve")
 const filesizePlugin = require("rollup-plugin-filesize")
 const replacePlugin = require("rollup-plugin-replace")
-const uglifyPlugin = require("rollup-plugin-uglify").uglify
+const terserPlugin = require("rollup-plugin-terser").terser
 
 const fs = require("fs-extra")
 const path = require("path")
@@ -62,7 +62,7 @@ async function generateBundledModule(inputFile, outputFile, format, production)
         plugins = [
             resolvePlugin(),
             replacePlugin(getEnvVariables(true)),
-            uglifyPlugin(),
+            terserPlugin(),
             filesizePlugin()
         ]
     } else {

yarn.lock

@@ -6586,15 +6586,15 @@ rollup-plugin-replace@^2.1.0:
     minimatch "^3.0.2"
     rollup-pluginutils "^2.0.1"
 
-rollup-plugin-uglify@^6.0.2:
-  version "6.0.2"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-6.0.2.tgz#681042cfdf7ea4e514971946344e1a95bc2772fe"
-  integrity sha512-qwz2Tryspn5QGtPUowq5oumKSxANKdrnfz7C0jm4lKxvRDsNe/hSGsB9FntUul7UeC4TsZEWKErVgE1qWSO0gw==
+rollup-plugin-terser@^4.0.4:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-terser/-/rollup-plugin-terser-4.0.4.tgz#6f661ef284fa7c27963d242601691dc3d23f994e"
+  integrity sha512-wPANT5XKVJJ8RDUN0+wIr7UPd0lIXBo4UdJ59VmlPCtlFsE20AM+14pe+tk7YunCsWEiuzkDBY3QIkSCjtrPXg==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     jest-worker "^24.0.0"
     serialize-javascript "^1.6.1"
-    uglify-js "^3.4.9"
+    terser "^3.14.1"
 
 rollup-pluginutils@^2.0.1:
   version "2.4.1"
@@ -7345,7 +7345,7 @@ terser-webpack-plugin@^1.1.0:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
-terser@^3.10.0, terser@^3.16.1:
+terser@^3.10.0, terser@^3.14.1, terser@^3.16.1:
   version "3.17.0"
   resolved "https://registry.yarnpkg.com/terser/-/terser-3.17.0.tgz#f88ffbeda0deb5637f9d24b0da66f4e15ab10cb2"
   integrity sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==
@@ -7542,7 +7542,7 @@ typescript@^3.3.3333:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3333.tgz#171b2c5af66c59e9431199117a3bcadc66fdcfd6"
   integrity sha512-JjSKsAfuHBE/fB2oZ8NxtRTk5iGcg6hkYXMnZ3Wc+b2RSqejEqTaem11mHASMnFilHrax3sLK0GDzcJrekZYLw==
 
-uglify-js@^3.1.4, uglify-js@^3.4.9:
+uglify-js@^3.1.4:
   version "3.4.10"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.10.tgz#9ad9563d8eb3acdfb8d38597d2af1d815f6a755f"
   integrity sha512-Y2VsbPVs0FIshJztycsO2SfPk7/KAF/T72qzv9u5EpQ4kB2hQoHlhNQTsNyy6ul7lQtqJN/AoWeS23OzEiEFxw==