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>
43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
'use strict';
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var $TypeError = require('es-errors/type');
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var IsDetachedBuffer = require('./IsDetachedBuffer');
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var IsTypedArrayOutOfBounds = require('./IsTypedArrayOutOfBounds');
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var MakeTypedArrayWithBufferWitnessRecord = require('./MakeTypedArrayWithBufferWitnessRecord');
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var TypedArrayLength = require('./TypedArrayLength');
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var isInteger = require('math-intrinsics/isInteger');
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var isNegativeZero = require('math-intrinsics/isNegativeZero');
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var isTypedArray = require('is-typed-array');
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var typedArrayBuffer = require('typed-array-buffer');
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// https://262.ecma-international.org/15.0/#sec-isvalidintegerindex
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module.exports = function IsValidIntegerIndex(O, index) {
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if (!isTypedArray(O)) {
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throw new $TypeError('Assertion failed: `O` is not a TypedArray object');
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}
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if (typeof index !== 'number') {
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throw new $TypeError('Assertion failed: `index` is not a Number');
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}
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var buffer = typedArrayBuffer(O);
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if (IsDetachedBuffer(buffer)) { return false; } // step 1
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if (!isInteger(index)) { return false; } // step 2
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if (isNegativeZero(index)) { return false; } // step 3
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var taRecord = MakeTypedArrayWithBufferWitnessRecord(O, 'UNORDERED'); // step 4
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if (IsTypedArrayOutOfBounds(taRecord)) {
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return false; // step 6
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}
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var length = TypedArrayLength(taRecord); // step 7
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if (index < 0 || index >= length) { return false; } // step 8
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return true; // step 9
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};
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