Ole-Morten Duesund
e8428de775
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>
28 lines
998 B
JavaScript
28 lines
998 B
JavaScript
'use strict';
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var $TypeError = require('es-errors/type');
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var $byteLength = require('array-buffer-byte-length');
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var availableTypedArrays = require('available-typed-arrays')();
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var callBound = require('call-bound');
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var isArrayBuffer = require('is-array-buffer');
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var isSharedArrayBuffer = require('is-shared-array-buffer');
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var $sabByteLength = callBound('SharedArrayBuffer.prototype.byteLength', true);
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// https://262.ecma-international.org/8.0/#sec-isdetachedbuffer
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module.exports = function IsDetachedBuffer(arrayBuffer) {
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var isSAB = isSharedArrayBuffer(arrayBuffer);
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if (!isArrayBuffer(arrayBuffer) && !isSAB) {
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throw new $TypeError('Assertion failed: `arrayBuffer` must be an Object with an [[ArrayBufferData]] internal slot');
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}
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if ((isSAB ? $sabByteLength : $byteLength)(arrayBuffer) === 0) {
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try {
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new global[availableTypedArrays[0]](arrayBuffer); // eslint-disable-line no-new
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} catch (error) {
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return !!error && error.name === 'TypeError';
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}
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}
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return false;
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};
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