tilfluktsrom/pwa/node_modules/is-finalizationregistry/index.js
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

25 lines
826 B
JavaScript

'use strict';
var callBound = require('call-bound');
/** @type {undefined | ((value: ThisParameterType<typeof FinalizationRegistry.prototype.register>, ...args: Parameters<typeof FinalizationRegistry.prototype.register>) => ReturnType<typeof FinalizationRegistry.prototype.register>)} */
var $register = callBound('FinalizationRegistry.prototype.register', true);
/** @type {import('.')} */
module.exports = $register
? function isFinalizationRegistry(value) {
if (!value || typeof value !== 'object') {
return false;
}
try {
// @ts-expect-error TS can't figure out that it's always truthy here
$register(value, {}, null);
return true;
} catch (e) {
return false;
}
}
// @ts-ignore unused var
: function isFinalizationRegistry(value) { // eslint-disable-line no-unused-vars
return false;
};