build: remove Comments

rollup.config.ts

@@ -14,19 +14,32 @@ const libraryName = 'promise-polyfill-plus'
 export default {
   input: `src/${libraryName}.ts`,
   output: [
-    { file: pkg.main, name: camelCase(libraryName), format: 'umd', sourcemap: true },
-    { file: pkg.module, format: 'es', sourcemap: true },
+    {
+      file: pkg.main,
+      name: camelCase(libraryName),
+      format: 'umd',
+      sourcemap: true
+    },
+    { file: pkg.module, format: 'es', sourcemap: true }
   ],
   // Indicate here external modules you don't wanna include in your bundle (i.e.: 'lodash')
   external: [],
   watch: {
-    include: 'src/**',
+    include: 'src/**'
   },
   plugins: [
     // Allow json resolution
     json(),
     // Compile TypeScript files
-    typescript({ useTsconfigDeclarationDir: true }),
+    typescript({
+      useTsconfigDeclarationDir: true,
+      tsconfig: 'tsconfig.json',
+      tsconfigOverride: {
+        compilerOptions: {
+          removeComments: true
+        }
+      }
+    }),
     // Allow bundling cjs modules (unlike webpack, rollup doesn't understand cjs)
     commonjs(),
     // Allow node_modules resolution, so you can use 'external' to control
@@ -35,6 +48,6 @@ export default {
     resolve(),
 
     // Resolve source maps to the original source
-    sourceMaps(),
-  ],
+    sourceMaps()
+  ]
 }