tilfluktsrom/pwa/node_modules/@rollup/plugin-terser/README.md
Ole-Morten Duesund e8428de775 Add progressive web app companion for cross-platform access
Vite + TypeScript PWA that mirrors the Android app's core features:
- Pre-processed shelter data (build-time UTM33N→WGS84 conversion)
- Leaflet map with shelter markers, user location, and offline tiles
- Canvas compass arrow (ported from DirectionArrowView.kt)
- IndexedDB shelter cache with 7-day staleness check
- Service worker with CacheFirst tiles and precached app shell
- i18n for en, nb, nn (ported from Android strings.xml)
- iOS/Android compass handling with low-pass filter
- Respects user map interaction (no auto-snap on pan/zoom)
- Build revision cache-breaker for reliable SW updates

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-08 17:41:38 +01:00

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# @rollup/plugin-terser
🍣 A Rollup plugin to generate a minified bundle with terser.
## Requirements
This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v14.0.0+) and Rollup v2.0+.
## Install
Using npm:
```console
npm install @rollup/plugin-terser --save-dev
```
## Usage
Create a `rollup.config.js` [configuration file](https://www.rollupjs.org/guide/en/#configuration-files) and import the plugin:
```typescript
import terser from '@rollup/plugin-terser';
export default {
input: 'src/index.js',
output: {
dir: 'output',
format: 'cjs'
},
plugins: [terser()]
};
```
Then call `rollup` either via the [CLI](https://www.rollupjs.org/guide/en/#command-line-reference) or the [API](https://www.rollupjs.org/guide/en/#javascript-api).
## Options
The plugin accepts a terser [Options](https://github.com/terser/terser#minify-options) object as input parameter,
to modify the default behaviour.
In addition to the `terser` options, it is also possible to provide the following options:
### `maxWorkers`
Type: `Number`<br>
Default: `undefined`
Instructs the plugin to use a specific amount of cpu threads.
```typescript
import terser from '@rollup/plugin-terser';
export default {
input: 'src/index.js',
output: {
dir: 'output',
format: 'cjs'
},
plugins: [
terser({
maxWorkers: 4
})
]
};
```
## Meta
[CONTRIBUTING](/.github/CONTRIBUTING.md)
[LICENSE (MIT)](/LICENSE)