/**
 * @description 通过 UA 判断浏览器
 * @author wangfupeng
 */
export declare const IS_IOS: boolean;
export declare const IS_APPLE: boolean;
export declare const IS_FIREFOX: boolean;
export declare const IS_FIREFOX_LEGACY: boolean;
export declare const IS_SAFARI: boolean;
export declare const IS_EDGE_LEGACY: boolean;
export declare const IS_CHROME_LEGACY: boolean;
export declare const IS_CHROME: boolean;
export declare const IS_QQBROWSER: boolean;
export declare const HAS_BEFORE_INPUT_SUPPORT: boolean;