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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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is-callable

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Supported engines

Automatically tested in every minor version of node.

Manually tested in:

Safari: v4 - v15 _{(4, 5, 5.1, 6.0.5, 6.2, 7.1, 8, 9.1.3, 10.1.2, 11.1.2, 12.1, 13.1.2, 14.1.2, 15.3, 15.6.1)}
- Note: Safari 9 has class, but Function.prototype.toString hides that progeny and makes them look like functions, so class constructors will be reported by this package as callable, when they are not in fact callable.
Chrome: v15 - v81, v83 - v106_{(every integer version)}
- Note: This includes Edge v80+ and Opera v15+, which matches Chrome
Firefox: v3, v3.6, v4 - v105 _{(every integer version)}
- Note: v45 - v54 has class, but Function.prototype.toString hides that progeny and makes them look like functions, so class constructors will be reported by this package as callable, when they are not in fact callable.
- Note: in v42 - v63, Function.prototype.toString throws on HTML element constructors, or a Proxy to a function
- Note: in v20 - v35, HTML element constructors are not callable, despite having typeof function.
- Note: in v19, document.all is not callable.
IE: v6 - v11_{(every integer version}
Opera: v11.1, v11.5, v11.6, v12.1, v12.14, v12.15, v12.16, v15+ _{v15+ matches Chrome}

Example

var isCallable = require('is-callable');
var assert = require('assert');

assert.notOk(isCallable(undefined));
assert.notOk(isCallable(null));
assert.notOk(isCallable(false));
assert.notOk(isCallable(true));
assert.notOk(isCallable([]));
assert.notOk(isCallable({}));
assert.notOk(isCallable(/a/g));
assert.notOk(isCallable(new RegExp('a', 'g')));
assert.notOk(isCallable(new Date()));
assert.notOk(isCallable(42));
assert.notOk(isCallable(NaN));
assert.notOk(isCallable(Infinity));
assert.notOk(isCallable(new Number(42)));
assert.notOk(isCallable('foo'));
assert.notOk(isCallable(Object('foo')));

assert.ok(isCallable(function () {}));
assert.ok(isCallable(function* () {}));
assert.ok(isCallable(x => x * x));

Install

Install with

npm install is-callable

Tests

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

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