Current File : /home/ugotscom/3vfm3/node_modules/bootstrap-vue/esm/utils/env.js
/**
* Utilities to get information about the current environment
*/
// --- Constants ---
export var hasWindowSupport = typeof window !== 'undefined';
export var hasDocumentSupport = typeof document !== 'undefined';
export var hasNavigatorSupport = typeof navigator !== 'undefined';
export var hasPromiseSupport = typeof Promise !== 'undefined';
/* istanbul ignore next: JSDOM always returns false */
export var hasMutationObserverSupport = typeof MutationObserver !== 'undefined' || typeof WebKitMutationObserver !== 'undefined' || typeof MozMutationObserver !== 'undefined';
export var isBrowser = hasWindowSupport && hasDocumentSupport && hasNavigatorSupport; // Browser type sniffing
export var userAgent = isBrowser ? window.navigator.userAgent.toLowerCase() : '';
export var isJSDOM = userAgent.indexOf('jsdom') > 0;
export var isIE = /msie|trident/.test(userAgent); // Determine if the browser supports the option passive for events
export var hasPassiveEventSupport = function () {
var passiveEventSupported = false;
if (isBrowser) {
try {
var options = {
get passive() {
// This function will be called when the browser
// attempts to access the passive property.
/* istanbul ignore next: will never be called in JSDOM */
passiveEventSupported = true;
}
};
window.addEventListener('test', options, options);
window.removeEventListener('test', options, options);
} catch (err) {
/* istanbul ignore next: will never be called in JSDOM */
passiveEventSupported = false;
}
}
return passiveEventSupported;
}();
export var hasTouchSupport = isBrowser && ('ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0);
export var hasPointerEventSupport = isBrowser && Boolean(window.PointerEvent || window.MSPointerEvent);
/* istanbul ignore next: JSDOM only checks for 'IntersectionObserver' */
export var hasIntersectionObserverSupport = isBrowser && 'IntersectionObserver' in window && 'IntersectionObserverEntry' in window && // Edge 15 and UC Browser lack support for `isIntersecting`
// but we an use intersectionRatio > 0 instead
// 'isIntersecting' in window.IntersectionObserverEntry.prototype &&
'intersectionRatio' in window.IntersectionObserverEntry.prototype; // --- Getters ---
export var getEnv = function getEnv(key) {
var fallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
var env = typeof process !== 'undefined' && process ? process.env || {} : {};
if (!key) {
/* istanbul ignore next */
return env;
}
return env[key] || fallback;
};
export var getNoWarn = function getNoWarn() {
return getEnv('BOOTSTRAP_VUE_NO_WARN') || getEnv('NODE_ENV') === 'production';
};
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