init project.

Author: jaywcjlove

.gitignore

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+/.idea/
+node_modules
+npm-debug.log*
+package-lock.json
+coverage
+dist
+lib
+.DS_Store
+.cache
+.vscode
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+
+*.bak
+*.tem
+*.temp
+#.swp
+*.*~
+~*.*

README.md

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-# babel-plugin-transform-replace-export-default
+babel-plugin-transform-replace-export-default
+===
+<!--rehype:style=display: flex; height: 230px; align-items: center; justify-content: center; font-size: 38px;-->
+
+Replace `export default` with `return`, or just remove `export default`.
+
+## Usage
+
+```bash
+npm install babel-plugin-transform-replace-export-default --save-dev
+```
+
+Via `.babelrc` or `babel-loader`.
+
+```json
+{
+  "plugins": [
+    "babel-plugin-transform-replace-export-default"
+  ]
+}
+```
+
+Or
+
+```json
+{
+  "plugins": [
+    ["babel-plugin-transform-replace-export-default", {
+      "removeExportDefault": true
+    }]
+  ]
+}
+```
+
+
+## Replace `export default` to `return`
+
+### Example 1
+
+```js
+// Input Code
+const demo = 0;
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+const demo = 0;
+return demo;
+```
+
+Output Result
+
+```diff
+const demo = 0;
+- export default demo;
++ return demo;
+```
+
+### Example 2
+
+```js
+// Input Code
+function demo() {};
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+function demo() {};
+return demo;
+```
+
+Output Result
+
+```diff
+function demo() {};
+- export default demo;
++ return demo;
+```
+
+### Example 3
+
+```js
+// Input Code
+class demo { constructor() { } };
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+class demo { constructor() { } };
+return demo;
+```
+
+Output Result
+
+```diff
+class demo { constructor() { } };
+- export default demo;
++ return demo;
+```
+
+### Example 4
+
+```js
+// Input Code
+export default class demo { constructor() { } };
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+return class demo { constructor() { } };
+```
+
+Output Result
+
+```diff
+- export default class demo { constructor() { } };
++ return class demo { constructor() { } };
+```
+
+### Example 5
+
+```js
+// Input Code
+export default class demo { constructor() { } };
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+return class demo { constructor() { } };
+```
+
+Output Result
+
+```diff
+- export default function demo() {};
++ return function demo() {};
+```
+
+## Remove `export default`
+
+```json
+{
+  "plugins": [
+    ["babel-plugin-transform-replace-export-default", {
+      "removeExportDefault": true
+    }]
+  ]
+}
+```
+
+### Example 1
+
+```js
+// Input Code
+export default class demo {}
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+class demo {}
+```
+
+Output Result
+
+```diff
+- export default class demo {}
++ class demo {}
+```
+
+### Example 2
+
+```js
+// Input Code
+export default function demo() {}
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+function demo() {}
+```
+
+Output Result
+
+```diff
+- export default function demo() {}
++ function demo() {}
+```
+
+### Example 3
+
+```js
+// Input Code
+class demo {}
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+class demo {}
+```
+
+Output Result
+
+```diff
+class demo {}
+- export default demo;
+```
+
+### Example 4
+
+```js
+// Input Code
+function demo() {}
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+function demo() {}
+```
+
+Output Result
+
+```diff
+function demo() {}
+- export default demo;
+```
+
+### Example 5
+
+```js
+// Input Code
+const demo = 0;
+export default demo;
+
+// Output   ↓ ↓ ↓ ↓ ↓ ↓
+const demo = 0;
+```
+
+Output Result
+
+```diff
+const demo = 0;
+- export default demo;
+```
+
+## Related
+
+- [markdown-react-code-preview-loader](https://github.com/kktjs/markdown-react-code-preview-loader)
+- [babel-plugin-transform-remove-imports](https://github.com/uiwjs/babel-plugin-transform-remove-imports)
+
+## License
+
+MIT © [`Kenny Wong`](https://github.com/jaywcjlove)

package.json

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+{
+  "name": "babel-plugin-transform-replace-export-default",
+  "version": "1.0.0",
+  "description": "Replace `export default` with `return`, or just remove `export default`.",
+  "typings": "./lib/index.d.ts",
+  "main": "./lib/index.js",
+  "scripts": {
+    "watch": "tsbb watch --disable-babel",
+    "build": "tsbb build --disable-babel",
+    "test": "tsbb test",
+    "coverage": "npm run build && tsbb test --coverage --bail"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/kktjs/babel-plugin-transform-replace-export-default.git"
+  },
+  "keywords": [
+    "babel",
+    "babel-plugin-transform",
+    "babel-plugin"
+  ],
+  "author": "jaywcjlove",
+  "license": "MIT",
+  "peerDependencies": {
+    "@babel/core": "^7.0.0-0"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "@babel/core": "^7.15.5",
+    "idoc": "^1.18.1",
+    "tsbb": "^3.7.2"
+  }
+}

src/index.ts

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+import { PluginObj, PluginPass } from '@babel/core';
+
+export type Options = {
+  removeExportDefault?: boolean;
+}
+
+export default function defaultExportReplace(): PluginObj<PluginPass> {
+  return {
+    name: 'transform-replace-export-default',
+    visitor: {
+      ExportDefaultDeclaration(path, state) {
+        const declaration = path.node.declaration;
+        const { removeExportDefault } = state.opts as Options;
+        if (removeExportDefault) {
+          declaration.type === 'Identifier' ? path.remove() : path.replaceWith(declaration);
+          return;
+        }
+
+        if (declaration.type === 'ClassDeclaration' || declaration.type === 'FunctionDeclaration') {
+          // @ts-ignore
+          path.node.type = 'ReturnStatement';
+          // @ts-ignore
+          path.node.argument = declaration;
+          path.replaceWith(path.node);
+        } else if (declaration.type === 'Identifier') {
+          // declaration.name = `return ${declaration.name}`;
+          // @ts-ignore
+          path.node.type = 'ReturnStatement';
+          // @ts-ignore
+          path.node.argument = declaration;
+          path.replaceWith(path.node);
+        }
+      },
+    },
+  };
+}