Initial actual commit

Lib.ts

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+export class Lib {
+  run() {
+    console.log('Success!');
+  }
+}

README.md

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+# Modern TypeScript project template
+
+Minimalistic example of configuring TypeScript and Node to:
+* emit modern ES modules code
+* import modules that use Node built-ins
+* import modules that don't have named exports (e.g. [`apollo-server`](https://github.com/apollographql/apollo-server/issues/1356#issuecomment-565277759), [`node-influx`](https://github.com/node-influx/node-influx/issues/298))
+* import your own modules without specifying an extension
+* run the resulting JavaScript code
+
+# Emit ES modules code
+
+In `tsconfig.json`, set this in `compilerOptions`:
+
+```json
+    "target": "esnext",
+    "module": "esnext",  // Output `import`/`export` ES modules
+```
+
+# Import modules that use Node built-ins (`http`, `url` etc.)
+
+* run `npm install --save-dev @types/node`
+* in `tsconfig.json` under `compilerOptions`, set
+  * `"moduleResolution": "node"`, so `tsc` can find modules [when targeting ES6+](https://github.com/Microsoft/TypeScript/issues/8189) 
+  * `"types": ["node"]` to avoid errors related to Node built-in modules  
+
+# Import modules that don't have named exports
+
+Set `"allowSyntheticDefaultImports": true` in `tsconfig.json`. In our code,
+instead of `import { InfluxDB } from 'influx` we have to write:
+
+```js
+import Influx from 'influx';
+const influx = new Influx.InfluxDB();
+```
+
+# Import your own modules without specifying an extension
+
+Run Node with the `node --experimental-specifier-resolution=node` parameter:
+
+    node --experimental-specifier-resolution=node run.js
+
+Otherwise, [node mandates that you specify the extension](https://nodejs.org/api/esm.html#esm_mandatory_file_extensions) in the `import` statement.
+
+# Run the resulting JavaScript code
+
+Add `"type": "module"` to `package.json`, because [TypeScript can't generate files with the .mjs extension](https://github.com/microsoft/TypeScript/issues/18442#issuecomment-581738714).

package.json

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+{
+  "name": "tsmodules",
+  "version": "1.0.0",
+  "description": "TypeScript project template to import modules without extension, and modules with default exports that use node built-ins",
+  "keywords": [
+    "typescript",
+    "modules",
+    "es modules",
+    "esnext",
+    "influxdb",
+    "apollo-server"
+  ],
+  "license": "MIT",
+  "author": "dandv",
+  "type": "module",
+  "main": "run.js",
+  "scripts": {
+    "start": "node --experimental-specifier-resolution=node run.js"
+  },
+  "dependencies": {
+    "influx": "^5.5.1"
+  },
+  "devDependencies": {
+    "@types/node": "^13.7.0",
+    "typescript": "^3.7.5"
+  }
+}

run.ts

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+import { Lib } from './Lib';
+import Influx from 'influx';
+const influx = new Influx.InfluxDB();
+const l = new Lib();
+l.run();

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",  // Output `import`/`export` ES modules
+    "moduleResolution": "node",  // Find modules in node_modules - https://github.com/Microsoft/TypeScript/issues/8189#issuecomment-212079251
+    "allowSyntheticDefaultImports": true,  // Allow default imports from modules with no default export. This does not affect code emit, just typechecking.
+    "types": ["node"]  // Influx uses built-in node modules like http or url
+  }
+}