microsoft · zhiyuanliang-ms · Nov 9, 2025 · Nov 9, 2025
diff --git a/src/feature-management-applicationinsights-browser/package.json b/src/feature-management-applicationinsights-browser/package.json
@@ -4,16 +4,15 @@
   "description": "Feature Management Application Insights Plugin for Browser provides a solution for sending feature flag evaluation events produced by the Feature Management library.",
   "main": "./dist/esm/index.js",
   "type": "module",
-  "types": "types/index.d.ts",
+  "types": "./dist/types/index.d.ts",
   "files": [
     "dist/",
-    "types/",
     "LICENSE",
     "README.md"
   ],
   "scripts": {
     "build": "npm run link && npm run clean && rollup --config",
-    "clean": "rimraf dist types",
+    "clean": "rimraf dist",
     "link": "npm link ../feature-management",
     "dev": "rollup --config --watch",
     "lint": "eslint src/",

diff --git a/src/feature-management-applicationinsights-browser/rollup.config.mjs b/src/feature-management-applicationinsights-browser/rollup.config.mjs
@@ -16,28 +16,14 @@ export default [
     ],
     plugins: [
       typescript({
-        compilerOptions: {
-          "lib": [
-            "DOM",
-            "WebWorker",
-            "ESNext"
-          ],
-          "skipDefaultLibCheck": true,
-          "module": "NodeNext",
-          "moduleResolution": "NodeNext",
-          "target": "ES2022",
-          "strictNullChecks": true,
-          "strictFunctionTypes": true,
-          "sourceMap": true,
-          "inlineSources": true
-        }
+        tsconfig: "./tsconfig.json",
       })
     ],
   },
   {
     external: ["@microsoft/feature-management"],
     input: "src/index.ts",
-    output: [{ file: "types/index.d.ts", format: "esm" }],
+    output: [{ file: "dist/types/index.d.ts", format: "esm" }],
     plugins: [dts()],
   }
 ];
diff --git a/src/feature-management-applicationinsights-browser/tsconfig.json b/src/feature-management-applicationinsights-browser/tsconfig.json
@@ -1,21 +1,26 @@
 {
     "compilerOptions": {
+        // Include ES2022 (modern JS), ESNext (future features), DOM and web worker APIs for browser support.
         "lib": [
             "DOM",
             "WebWorker",
             "ESNext",
             "ES2022"
         ],
-        "skipDefaultLibCheck": true,
-        "module": "ESNext",
-        "moduleResolution": "Node",
+        // Generate modern JavaScript syntax compatible with modern browsers.
         "target": "ES2022",
+
+        // Use Node-style resolution to locate imports
+        "moduleResolution": "Node",
+
+        // Ensure strict type-checking
         "strictNullChecks": true,
         "strictFunctionTypes": true,
+        "skipDefaultLibCheck": true,
+
+        // Generate source maps and inline original TypeScript sources for debugging.
         "sourceMap": true,
         "inlineSources": true,
-        "allowSyntheticDefaultImports": true,
-        "esModuleInterop": true
     },
     "exclude": [
         "node_modules",

diff --git a/src/feature-management-applicationinsights-node/package.json b/src/feature-management-applicationinsights-node/package.json
@@ -4,26 +4,25 @@
   "description": "Feature Management Application Insights Plugin for Node.js provides a solution for sending feature flag evaluation events produced by the Feature Management library.",
   "files": [
     "dist/",
-    "types/",
     "LICENSE",
     "README.md"
   ],
   "exports": {
     "./package.json": "./package.json",
     ".": {
       "import": {
-        "types": "./types/index.d.ts",
+        "types": "./dist/types/index.d.ts",
         "default": "./dist/esm/index.js"
       },
       "require": {
-        "types": "./types/index.d.ts",
+        "types": "./dist/types/index.d.ts",
         "default": "./dist/commonjs/index.js"
       }
     }
   },
   "scripts": {
     "build": "npm run link && npm run clean && rollup --config",
-    "clean": "rimraf dist types",
+    "clean": "rimraf dist",
     "link": "npm link ../feature-management",
     "dev": "rollup --config --watch",
     "lint": "eslint src/",

diff --git a/src/feature-management-applicationinsights-node/rollup.config.mjs b/src/feature-management-applicationinsights-node/rollup.config.mjs
@@ -22,28 +22,14 @@ export default [
     ],
     plugins: [
       typescript({
-        compilerOptions: {
-          "lib": [
-            "DOM",
-            "WebWorker",
-            "ESNext"
-          ],
-          "skipDefaultLibCheck": true,
-          "module": "NodeNext",
-          "moduleResolution": "NodeNext",
-          "target": "ES2022",
-          "strictNullChecks": true,
-          "strictFunctionTypes": true,
-          "sourceMap": true,
-          "inlineSources": true
-        }
+        tsconfig: "./tsconfig.json",
       })
     ],
   },
   {
     external: ["@microsoft/feature-management"],
     input: "src/index.ts",
-    output: [{ file: "types/index.d.ts", format: "esm" }],
+    output: [{ file: "dist/types/index.d.ts", format: "esm" }],
     plugins: [dts()],
   }
 ];
diff --git a/src/feature-management-applicationinsights-node/tsconfig.json b/src/feature-management-applicationinsights-node/tsconfig.json
@@ -1,21 +1,29 @@
 {
     "compilerOptions": {
+        // Include ES2022 (modern JS), ESNext (future features) and web worker APIs.
         "lib": [
-            "DOM",
             "WebWorker",
             "ESNext",
             "ES2022"
         ],
-        "skipDefaultLibCheck": true,
-        "module": "ESNext",
-        "moduleResolution": "Node",
+        // Generate modern JavaScript syntax compatible with Node 18+.
         "target": "ES2022",
+
+        // Use Node-style resolution to locate imports
+        "moduleResolution": "Node",
+
+        // Allow default imports from CommonJS modules.
+        "allowSyntheticDefaultImports": true,
+        "esModuleInterop": true,
+
+        // Ensure strict type-checking
         "strictNullChecks": true,
         "strictFunctionTypes": true,
+        "skipDefaultLibCheck": true,
+
+        // Generate source maps and inline original TypeScript sources for debugging.
         "sourceMap": true,
         "inlineSources": true,
-        "allowSyntheticDefaultImports": true,
-        "esModuleInterop": true
     },
     "exclude": [
         "node_modules",

diff --git a/src/feature-management/package.json b/src/feature-management/package.json
@@ -4,19 +4,18 @@
   "description": "Feature Management is a library for enabling/disabling features at runtime. Developers can use feature flags in simple use cases like conditional statement to more advanced scenarios like conditionally adding routes.",
   "files": [
     "dist/",
-    "types/",
     "LICENSE",
     "README.md"
   ],
   "exports": {
     "./package.json": "./package.json",
     ".": {
       "import": {
-        "types": "./types/index.d.ts",
+        "types": "./dist/types/index.d.ts",
         "default": "./dist/esm/index.js"
       },
       "require": {
-        "types": "./types/index.d.ts",
+        "types": "./dist/types/index.d.ts",
         "default": "./dist/commonjs/index.js"
       }
     }
@@ -26,7 +25,7 @@
     "build-test": "npm run build-test-esm && npm run build-test-cjs",
     "build-test-esm": "tsc -p ./tsconfig.test.esm.json && cpy esm-package.json out/esm --rename=package.json",
     "build-test-cjs": "tsc -p ./tsconfig.test.cjs.json && cpy cjs-package.json out/commonjs --rename=package.json",
-    "clean": "rimraf dist out types",
+    "clean": "rimraf dist out",
     "dev": "rollup --config --watch",
     "lint": "eslint src/ test/ --ignore-pattern test/browser/testcases.js",
     "fix-lint": "eslint src/ test/ --fix --ignore-pattern test/browser/testcases.js",

diff --git a/src/feature-management/rollup.config.mjs b/src/feature-management/rollup.config.mjs
@@ -4,7 +4,9 @@ import dts from "rollup-plugin-dts";
 
 export default [
   {
-    external: ["crypto"],
+    external: [
+      "crypto"
+    ],
     input: "src/index.ts",
     output: [
       {
@@ -28,30 +30,13 @@ export default [
     ],
     plugins: [
       typescript({
-        compilerOptions: {
-          "lib": [
-            "DOM",
-            "WebWorker",
-            "ESNext"
-          ],
-          "skipDefaultLibCheck": true,
-          "module": "ESNext",
-          "moduleResolution": "Node",
-          "target": "ES2022",
-          "strictNullChecks": true,
-          "strictFunctionTypes": true,
-          "sourceMap": true,
-          "inlineSources": true
-        },
-        "exclude": [
-            "test/**/*"
-        ]
+        tsconfig: "./tsconfig.json",
       })
     ],
   },
   {
     input: "src/index.ts",
-    output: [{ file: "types/index.d.ts", format: "esm" }],
+    output: [{ file: "dist/types/index.d.ts", format: "esm" }],
     plugins: [dts()],
   },
 ];
diff --git a/src/feature-management/tsconfig.json b/src/feature-management/tsconfig.json
@@ -1,20 +1,30 @@
 {
     "compilerOptions": {
+        // Include ES2022 (modern JS), ESNext (future features), DOM and web worker APIs for browser support.
         "lib": [
             "DOM",
             "WebWorker",
             "ESNext",
             "ES2022"
         ],
-        "skipDefaultLibCheck": true,
-        "moduleResolution": "Node",
+        // Generate modern JavaScript syntax compatible with Node 18+ and modern browsers.
         "target": "ES2022",
+
+        // Use Node-style resolution to locate imports
+        "moduleResolution": "Node",
+
+        // Allow default imports from CommonJS modules.
+        "allowSyntheticDefaultImports": true,
+        "esModuleInterop": true,
+
+        // Ensure strict type-checking
         "strictNullChecks": true,
         "strictFunctionTypes": true,
+        "skipDefaultLibCheck": true,
+
+        // Generate source maps and inline original TypeScript sources for debugging.
         "sourceMap": true,
         "inlineSources": true,
-        "allowSyntheticDefaultImports": true,
-        "esModuleInterop": true
     },
     "exclude": [
         "node_modules",