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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is-boolean-object

Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Example

var isBoolean = require('is-boolean-object');
var assert = require('assert');

assert.notOk(isBoolean(undefined));
assert.notOk(isBoolean(null));
assert.notOk(isBoolean('foo'));
assert.notOk(isBoolean(function () {}));
assert.notOk(isBoolean([]));
assert.notOk(isBoolean({}));
assert.notOk(isBoolean(/a/g));
assert.notOk(isBoolean(new RegExp('a', 'g')));
assert.notOk(isBoolean(new Date()));
assert.notOk(isBoolean(42));
assert.notOk(isBoolean(NaN));
assert.notOk(isBoolean(Infinity));

assert.ok(isBoolean(new Boolean(42)));
assert.ok(isBoolean(false));
assert.ok(isBoolean(Object(false)));
assert.ok(isBoolean(true));
assert.ok(isBoolean(Object(true)));

Tests

Simply clone the repo, npm install, and run npm test

2.2 KiB Raw Blame History

is-boolean-object

Example

Tests

2.2 KiB

Raw Blame History