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>
21 lines
606 B
JavaScript
21 lines
606 B
JavaScript
'use strict';
|
|
|
|
var GetIntrinsic = require('get-intrinsic');
|
|
|
|
var $Uint8Array = GetIntrinsic('%Uint8Array%', true);
|
|
var $Uint32Array = GetIntrinsic('%Uint32Array%', true);
|
|
|
|
var typedArrayBuffer = require('typed-array-buffer');
|
|
|
|
var uInt32 = $Uint32Array && new $Uint32Array([0x12345678]);
|
|
var uInt8 = uInt32 && new $Uint8Array(typedArrayBuffer(uInt32));
|
|
|
|
module.exports = uInt8
|
|
? uInt8[0] === 0x78
|
|
? 'little'
|
|
: uInt8[0] === 0x12
|
|
? 'big'
|
|
: uInt8[0] === 0x34
|
|
? 'mixed' // https://developer.mozilla.org/en-US/docs/Glossary/Endianness
|
|
: 'unknown' // ???
|
|
: 'indeterminate'; // no way to know
|