tilfluktsrom/pwa/node_modules/es-abstract/2025/FindViaPredicate.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

43 lines
1.5 KiB
JavaScript

'use strict';
var $TypeError = require('es-errors/type');
var isInteger = require('math-intrinsics/isInteger');
var isObject = require('es-object-atoms/isObject');
var Call = require('./Call');
var Get = require('./Get');
var ToBoolean = require('./ToBoolean');
var IsCallable = require('./IsCallable');
var ToString = require('./ToString');
// https://262.ecma-international.org/15.0/#sec-findviapredicate
module.exports = function FindViaPredicate(O, len, direction, predicate, thisArg) {
if (!isObject(O)) {
throw new $TypeError('Assertion failed: Type(O) is not Object');
}
if (!isInteger(len) || len < 0) {
throw new $TypeError('Assertion failed: len must be a non-negative integer');
}
if (direction !== 'ascending' && direction !== 'descending' && direction !== 'DESCENDING' && direction !== 'ASCENDING') {
throw new $TypeError('Assertion failed: direction must be ~ASCENDING~ or ~DESCENDING~');
}
if (!IsCallable(predicate)) {
throw new $TypeError('predicate must be callable'); // step 1
}
for ( // steps 2-4
var k = direction === 'ascending' || direction === 'ASCENDING' ? 0 : len - 1;
direction === 'ascending' || direction === 'ASCENDING' ? k < len : k >= 0;
k += 1
) {
var Pk = ToString(k); // step 4.a
var kValue = Get(O, Pk); // step 4.c
var testResult = Call(predicate, thisArg, [kValue, k, O]); // step 4.d
if (ToBoolean(testResult)) {
return { '[[Index]]': k, '[[Value]]': kValue }; // step 4.e
}
}
return { '[[Index]]': -1, '[[Value]]': void undefined }; // step 5
};