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smart-city-digital-twin-mar…/smart-app-city/frontend/node_modules/fbjs/lib/getByPath.js.flow
Eric FELIXINE e30ae8ed09 feat(smart-app): implement complete mobile app MVP
- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image
2026-06-01 18:00:35 -04:00

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/**
* Copyright (c) 2013-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @providesModule getByPath
* @flow
* @typechecks
*/
'use strict';
/**
* Get a value from an object based on the given path
*
* Usage example:
*
* var obj = {
* a : {
* b : 123
* }
* };
*
* var result = getByPath(obj, ['a', 'b']); // 123
*
* You may also specify the path using an object with a path field
*
* var result = getByPath(obj, {path: ['a', 'b']}); // 123
*
* If the path doesn't exist undefined will be returned
*
* var result = getByPath(obj, ['x', 'y', 'z']); // undefined
*/
function getByPath(root: any
/*?Object | Error*/
, path: Array<string>, fallbackValue?: any): any {
let current = root;
for (let i = 0; i < path.length; i++) {
const segment = path[i]; // Use 'in' to check entire prototype chain since immutable js records
// use prototypes
if (current && segment in current) {
current = current[segment];
} else {
return fallbackValue;
}
}
return current;
}
module.exports = getByPath;