ref(typescript): Default to esnext/bundler instead of node16

mydea · claude · mydea · commit 12113fc3f40e · 2026-06-15T16:23:39.000+02:00
Everything we ship is bundled (Rollup emits the JS; tsc only emits .d.ts, which
is byte-identical either way), so the base config now defaults to esnext/bundler
— a uniform, modern default that the bundled majority of packages already used.
This also avoids the node16 literal, which older toolchains (Angular's pinned
TS 4.6, the TS 3.8 compat job) can't parse.

Removes all now-redundant module/moduleResolution overrides across packages,
leaving only genuine exceptions:
- svelte: `node` resolution (Svelte 3 imports deep paths not in its exports map)
- angular: inlined config with esnext/node (ng-packagr pins TS 4.6)
- nextjs/remix tsconfig.test.json: Node16 (deliberately exercise node resolution)
- astro tsconfig.dev.json: unchanged dev config

Co-Authored-By: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/packages/astro/tsconfig.json b/packages/astro/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler"
     // package-specific options
   }
 }
diff --git a/packages/browser/tsconfig.json b/packages/browser/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*", "test/loader.js"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "lib": ["DOM", "es2020", "WebWorker"]
   }
 }
diff --git a/packages/cloudflare/tsconfig.json b/packages/cloudflare/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "types": ["node", "@cloudflare/workers-types"]
   }
 }
diff --git a/packages/core/tsconfig.types.json b/packages/core/tsconfig.types.json
@@ -2,8 +2,6 @@
   "extends": "./tsconfig.json",
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "declaration": true,
     "declarationMap": true,
     "emitDeclarationOnly": true,
diff --git a/packages/deno/tsconfig.build.json b/packages/deno/tsconfig.build.json
@@ -4,7 +4,6 @@
   "compilerOptions": {
     "outDir": "build",
     "lib": ["esnext"],
-    "module": "esnext",
     "target": "esnext",
     "declaration": true,
     "declarationMap": false
diff --git a/packages/deno/tsconfig.json b/packages/deno/tsconfig.json
@@ -3,8 +3,6 @@
   "include": ["./lib.deno.d.ts", "src/**/*", "example.ts"],
   "compilerOptions": {
     "lib": ["esnext"],
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "target": "esnext"
   }
 }
diff --git a/packages/deno/tsconfig.test.json b/packages/deno/tsconfig.test.json
@@ -3,7 +3,6 @@
   "include": ["./lib.deno.d.ts", "test/**/*"],
   "compilerOptions": {
     "lib": ["esnext"],
-    "module": "esnext",
     "target": "esnext"
   }
 }
diff --git a/packages/effect/tsconfig.json b/packages/effect/tsconfig.json
@@ -1,8 +1,6 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "outDir": "build"
   },
   "include": ["src/**/*"]
diff --git a/packages/ember/tsconfig.json b/packages/ember/tsconfig.json
@@ -4,15 +4,13 @@
     "target": "es2022",
     "lib": ["DOM", "ES2022"],
     "allowJs": true,
-    "moduleResolution": "bundler",
     "allowSyntheticDefaultImports": true,
     "alwaysStrict": true,
     "strictNullChecks": true,
     "strictPropertyInitialization": true,
     "noEmitOnError": false,
     "noEmit": true,
     "baseUrl": ".",
-    "module": "esnext",
     "experimentalDecorators": true,
     "paths": {
       "dummy/tests/*": ["tests/*"],
diff --git a/packages/feedback/tsconfig.json b/packages/feedback/tsconfig.json
@@ -1,9 +1,6 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
-
     /* Preact Config */
     "jsx": "react-jsx",
     "jsxImportSource": "preact",
diff --git a/packages/hono/tsconfig.json b/packages/hono/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "types": ["node", "@cloudflare/workers-types"]
   }
 }
diff --git a/packages/integration-shims/tsconfig.json b/packages/integration-shims/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler"
     // package-specific options
   }
 }
diff --git a/packages/nextjs/tsconfig.json b/packages/nextjs/tsconfig.json
@@ -5,7 +5,5 @@
 
   "compilerOptions": {
     // package-specific options
-    "module": "esnext",
-    "moduleResolution": "bundler"
   }
 }
diff --git a/packages/nitro/tsconfig.json b/packages/nitro/tsconfig.json
@@ -5,7 +5,5 @@
 
   "compilerOptions": {
     // package-specific options
-    "module": "esnext",
-    "moduleResolution": "bundler"
   }
 }
diff --git a/packages/node-native/tsconfig.json b/packages/node-native/tsconfig.json
@@ -1,8 +1,6 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "outDir": "build",
     "types": ["node"]
   },
diff --git a/packages/nuxt/tsconfig.json b/packages/nuxt/tsconfig.json
@@ -5,7 +5,5 @@
 
   "compilerOptions": {
     // package-specific options
-    "module": "esnext",
-    "moduleResolution": "bundler"
   }
 }
diff --git a/packages/profiling-node/tsconfig.json b/packages/profiling-node/tsconfig.json
@@ -1,8 +1,6 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "outDir": "build",
     "types": ["node"]
   },
diff --git a/packages/react-router/tsconfig.json b/packages/react-router/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "jsx": "react"
   }
 }
diff --git a/packages/react/tsconfig.json b/packages/react/tsconfig.json
@@ -5,8 +5,6 @@
 
   "compilerOptions": {
     "lib": ["DOM", "es2020"],
-    "module": "esnext",
-    "moduleResolution": "bundler",
     // package-specific options
     "esModuleInterop": true,
     "jsx": "react"
diff --git a/packages/remix/tsconfig.json b/packages/remix/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "jsx": "react",
-    "module": "esnext",
-    "moduleResolution": "bundler"
+    "jsx": "react"
   }
 }
diff --git a/packages/replay-canvas/tsconfig.json b/packages/replay-canvas/tsconfig.json
@@ -1,9 +1,7 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "lib": ["DOM", "es2020"],
-    "module": "esnext",
-    "moduleResolution": "bundler"
+    "lib": ["DOM", "es2020"]
   },
   "include": ["src/**/*.ts"]
 }
diff --git a/packages/replay-internal/tsconfig.json b/packages/replay-internal/tsconfig.json
@@ -1,9 +1,7 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "lib": ["DOM", "es2020"],
-    "module": "esnext",
-    "moduleResolution": "bundler"
+    "lib": ["DOM", "es2020"]
   },
   "include": ["src/**/*.ts"]
 }
diff --git a/packages/replay-worker/tsconfig.json b/packages/replay-worker/tsconfig.json
@@ -1,8 +1,6 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "lib": ["webworker", "scripthost"],
     "esModuleInterop": true,
     "target": "es2020",
diff --git a/packages/solid/tsconfig.json b/packages/solid/tsconfig.json
@@ -4,11 +4,9 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "lib": ["DOM", "es2020"],
+    "lib": ["DOM", "es2020"]
     // This package imports ESM-only deps (`solid-js`); under `node16` resolution a CommonJS file
     // can't `require` those (TS1479/TS1541). Like our other framework packages it's compiled via a
     // bundler, so use `esnext`/`bundler` here instead of the `node16` default.
-    "module": "esnext",
-    "moduleResolution": "bundler"
   }
 }
diff --git a/packages/solidstart/tsconfig.json b/packages/solidstart/tsconfig.json
@@ -3,8 +3,5 @@
 
   "include": ["src/**/*"],
 
-  "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler"
-  }
+  "compilerOptions": {}
 }
diff --git a/packages/sveltekit/tsconfig.json b/packages/sveltekit/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler"
     // package-specific options
   }
 }
diff --git a/packages/tanstackstart-react/tsconfig.json b/packages/tanstackstart-react/tsconfig.json
@@ -1,8 +1,5 @@
 {
   "extends": "../../tsconfig.json",
   "include": ["src/**/*"],
-  "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler"
-  }
+  "compilerOptions": {}
 }
diff --git a/packages/typescript/tsconfig.json b/packages/typescript/tsconfig.json
@@ -7,8 +7,8 @@
     "inlineSources": true,
     "isolatedModules": true,
     "lib": ["es2020"],
-    "module": "node16",
-    "moduleResolution": "node16",
+    "module": "esnext",
+    "moduleResolution": "bundler",
     "noErrorTruncation": true,
     "noFallthroughCasesInSwitch": true,
     "noImplicitReturns": true,
diff --git a/packages/vue/tsconfig.json b/packages/vue/tsconfig.json
@@ -4,8 +4,6 @@
   "include": ["src/**/*"],
 
   "compilerOptions": {
-    "module": "esnext",
-    "moduleResolution": "bundler",
     "lib": ["DOM", "es2020"]
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -4,8 +4,6 @@`
`4`	`4`	`"include": ["src/*/"],`
`5`	`5`
`6`	`6`	`"compilerOptions": {`
`7`		`- "module": "esnext",`
`8`		`- "moduleResolution": "bundler"`
`9`	`7`	`// package-specific options`
`10`	`8`	`}`
`11`	`9`	`}`
Original file line number	Diff line number	Diff line change
`@@ -4,8 +4,6 @@`
`4`	`4`	`"include": ["src/*/", "test/loader.js"],`
`5`	`5`
`6`	`6`	`"compilerOptions": {`
`7`		`- "module": "esnext",`
`8`		`- "moduleResolution": "bundler",`
`9`	`7`	`"lib": ["DOM", "es2020", "WebWorker"]`
`10`	`8`	`}`
`11`	`9`	`}`
Original file line number	Diff line number	Diff line change
`@@ -3,8 +3,6 @@`
`3`	`3`	`"include": ["./lib.deno.d.ts", "src/*/", "example.ts"],`
`4`	`4`	`"compilerOptions": {`
`5`	`5`	`"lib": ["esnext"],`
`6`		`- "module": "esnext",`
`7`		`- "moduleResolution": "bundler",`
`8`	`6`	`"target": "esnext"`
`9`	`7`	`}`
`10`	`8`	`}`
Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,6 @@`
`3`	`3`	`"include": ["./lib.deno.d.ts", "test/*/"],`
`4`	`4`	`"compilerOptions": {`
`5`	`5`	`"lib": ["esnext"],`
`6`		`- "module": "esnext",`
`7`	`6`	`"target": "esnext"`
`8`	`7`	`}`
`9`	`8`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,6 @@`
`1`	`1`	`{`
`2`	`2`	`"extends": "../../tsconfig.json",`
`3`	`3`	`"compilerOptions": {`
`4`		`- "module": "esnext",`
`5`		`- "moduleResolution": "bundler",`
`6`	`4`	`"outDir": "build"`
`7`	`5`	`},`
`8`	`6`	`"include": ["src/*/"]`