export declare type TypeString = 'string' | 'number' | 'object' | 'symbol' | 'array' | 'function' | 'boolean'; export declare const isArray: (arg: any) => arg is any[]; export declare const isObject: (data: any) => data is { [k: string]: any; }; export declare function isJSONStr(str: string): str is string; export declare const isFunction: (data: any) => data is Function; export declare const isString: (data: any) => data is string; export declare const isNumber: (data: any) => data is number; export declare const isBoolean: (data: any) => data is boolean; export declare const isSymbol: (data: any) => data is Symbol; export declare const isBasicData: (data: any) => boolean; export declare const toLowerCase: (str: string) => string; export declare const toUpperCase: (str: string) => string; export declare const getType: (data: any) => TypeString; export declare const isType: (data: any, typeStr: TypeString | TypeString[]) => boolean; export declare const isEqual: (v1: any, v2: any) => boolean; export declare const isOdd: (num: number) => boolean; export declare const isBase64: (str: string) => boolean; export declare const isPicture: (picture: string) => boolean; export declare const isURL: (url: string) => boolean; export declare const isDevice: () => 'iOS' | 'Android' | 'WeChat' | 'Web'; export declare const capitalUpperCase: (str: string) => string; export declare const capitalLowerCase: (str: string) => string; export declare const capitalUpperCaseAllLowerCase: (str: string) => string; export declare const toLowerCamelCase: (str: string) => string; export declare const toCamelCase: (str: string) => string;