browserslist-to-es-version

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browserslist-to-es-version

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Convert browserslist query to ECMAScript version.

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# browserslist-to-es-version

Convert [browserslist](https://github.com/browserslist/browserslist) query to ECMAScript version.

## CLI usage

In any package with a browserslist configuration:

```bash
$ npx browserslist-to-es-version
2017
```

Alternatively, you can provide a browserslist query as a string:

```bash
npx browserslist-to-es-version "Chrome >= 80, Firefox >= 72"
```

## API usage

Install:

```bash
npm add browserslist-to-es-version -D
```

Example:

```ts
import { browserslistToESVersion } from 'browserslist-to-es-version';

const esVersion = browserslistToESVersion([
  'chrome >= 87',
  'edge >= 88',
  'firefox >= 78',
  'safari >= 14',
]);

console.log(esVersion); // 2017
```

### Type

```ts
// Only supports ES5 ~ ES2024
type ESVersion =
  5 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024;

function browserslistToESVersion(browsers: string[]): ESVersion;
```

## Data source

- https://caniuse.com/sr-es15
- https://caniuse.com/?search=es2023
- https://caniuse.com/?search=es2022
- https://caniuse.com/?search=es2021
- https://caniuse.com/?search=es2020
- https://caniuse.com/?search=es2019
- https://caniuse.com/?search=es2018
- https://caniuse.com/?search=es2017
- https://caniuse.com/?search=es2016
- https://caniuse.com/?search=es2015
- https://caniuse.com/?search=es5

## License

[MIT](./LICENSE).

browserslist-to-es-version

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