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doc: add examples for implementing ESM #33168

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doc: add examples for implementing ESM #33168

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doc: add examples for implementing ESM
rosaxxny Apr 30, 2020
20eddec
fixup! doc: add examples for implementing ESM
rosaxxny Apr 30, 2020
60b9a13
fixup! fixup! doc: add examples for implementing ESM
rosaxxny May 12, 2020
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21 changes: 21 additions & 0 deletions doc/api/esm.md
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Expand Up @@ -13,6 +13,27 @@ ECMAScript modules are [the official standard format][] to package JavaScript
code for reuse. Modules are defined using a variety of [`import`][] and
[`export`][] statements.

The following example of an ES module exports a function:

```js
// addTwo.js
function addTwo(num) {
return num + 2;
}

export { addTwo };
```

The following example of an ES module imports the function from `addTwo.js`:

```js
// app.js
import { addTwo } from './addTwo.js';

// Prints: 6
console.log(addTwo(4));
```

Node.js fully supports ECMAScript modules as they are currently specified and
provides limited interoperability between them and the existing module format,
[CommonJS][].
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