export declare const hasProto: boolean;
export declare const inBrowser: boolean;
export declare const UA: string;
export declare const isIE: boolean;
export declare const isIE9: boolean;
export declare const isEdge: boolean;
export declare const isAndroid: boolean;
export declare const isIOS: boolean;
export declare const isChrome: boolean;
export declare const isWeixinBrowser: boolean;
/** 获得 Chrome 的版本号 */
export declare function getChromeVersion(): number | boolean;
export declare const nativeWatch: any;
export declare function isSupportPassive(): Promise<boolean>;