is-where/dist/index.js

JS environment check functions like `isWebkit() isSafari() isBrowser() isNode()` etc. A simple & small integration.

/**
 * Returns `true` if the current environment supports touch events
 *
 * @see https://stackoverflow.com/a/63666289/2697506
 */
export function isTouchSupported() {
    return isBrowser() && window.matchMedia('(hover: none)').matches;
}
/** Returns `true` if the current environment is Node */
export function isNode() {
    return typeof process !== 'undefined' && process.versions != null && process.versions.node != null;
}
/** Returns `true` if the current environment is a browser */
export function isBrowser() {
    return typeof window !== 'undefined' && typeof window.document !== 'undefined';
}
/** Returns `true` if the current environment is a Web Worker */
export function isWebWorker() {
    return (typeof self === 'object' &&
        self.constructor &&
        self.constructor.name === 'DedicatedWorkerGlobalScope');
}
/** Returns `true` if the current environment is JS DOM */
export function isJsDom() {
    return ((typeof window !== 'undefined' && window.name === 'nodejs') ||
        (typeof navigator !== 'undefined' &&
            (navigator.userAgent.includes('Node.js') || navigator.userAgent.includes('jsdom'))));
}
/** Returns `true` if the current environment is Deno */
export function isDeno() {
    // @ts-expect-error Deno types not found
    return typeof Deno !== 'undefined' && typeof Deno.core !== 'undefined';
}
/**
 * Returns `true` if the current browser is based on WebKit
 *
 * This includes:
 *
 * - Safari on macOS
 * - Safari on iOS & iPadOS
 * - Google Chrome on iOS & iPadOS
 * - Firefox on iOS & iPadOS
 * - ... on iOS & iPadOS
 *
 * All mobile browsers on iOS & iPadOS use WebKit
 */
export function isWebKit() {
    return (isBrowser() &&
        !!navigator.vendor &&
        navigator.vendor.indexOf('Apple') !== -1 &&
        !!navigator.userAgent);
}
/**
 * Returns `true` if the current browser is Safari
 *
 * This includes:
 *
 * - Safari on macOS
 * - Safari on iOS & iPadOS
 *
 * It does not include other browser on iOS & iPadOS
 */
export function isSafari() {
    return (isBrowser() &&
        !!navigator.vendor &&
        navigator.vendor.indexOf('Apple') !== -1 &&
        !!navigator.userAgent &&
        navigator.userAgent.indexOf('CriOS') == -1 &&
        navigator.userAgent.indexOf('FxiOS') == -1);
}