/// <reference types="node" />
import { getType } from '../assertion/getType';
import type { Dict, Falsy, Nil, NonUndefined, Primitive } from '../type';
export { getType };
export * from './isNumber';
/**
 * @description 是否为数组
 */
export declare function isArray<T>(value: any): value is Array<T>;
/**
 * @description Asserts that the value is Falsy.
 * @example
 * isFalsy(false) === true
 * isFalsy(0) === true
 * isFalsy('') === true
 * isFalsy(null) === true
 * isFalsy(undefined) === true
 */
export declare function isFalsy(value: any): value is Falsy;
/**
 * @description Asserts that the value is Nil. `null`, `undefined`
 * @example
 * isNil(null) === true
 * isNil(undefined) === true
 */
export declare function isNil(value: any): value is Nil;
/**
 * @description Asserts that the value is not `undefined` or `null`
 */
export declare const isDefinedAndInitialize: <T>(value: T | null | undefined) => value is T;
/**
 * @description Asserts that the value is not `undefined` or `null`
 */
export declare const isNotNil: <T>(value: T | null | undefined) => value is T;
/**
 * @description Asserts that the value is undefined
 */
export declare const isUndefined: <T>(value: T | undefined) => value is undefined;
/**
 * @description Asserts that the value is not undefined
 */
export declare const isDefined: <T>(value: T) => value is NonUndefined<T>;
/**
 * @description Asserts that the value is null
 */
export declare const isNull: (value: any) => value is null;
/**
 * @description Asserts that the value is not null
 */
export declare const isNotNull: <T>(value: T) => value is NonNullable<T>;
/**
 * @description Asserts that the value is []
 */
export declare const isEmptyArray: (value: any) => value is [];
/**
 * @description Asserts that the value is Function
 */
export declare function isFunction(value: any): value is Function;
/**
 * @description 获取原型
 * @example
 * const a = { a: 1 };
 * const b = Object.create(a);
 * const c = Object.create(b);
 * getPrototype(c) === b;
 * getPrototype(b) === a;
 * getPrototype(a) === Object.prototype;
 * getPrototype(Object.prototype) === null;
 */
export declare const getPrototype: (value: any) => any;
/**
 * @description 获取实例类型
 * @example
 * const a = { a: 1 };
 * const b = Object.create(a);
 * const c = Object.create(b);
 * getInstanceType(c) === 'Object';
 * getInstanceType(b) === 'Object';
 * getInstanceType(a) === 'Object';
 * getInstanceType(Object.prototype) === 'Object';
 * getInstanceType(Object) === 'Function';
 * getInstanceType(Function) === 'Function';
 */
export declare const getInstanceType: (value: any) => any;
/**
 * @description Check if the value is Object
 * @description object、function 类型为 true
 * @description Primitive 类型为 false
 */
export declare const isObject: (value: any) => value is object;
/**
 * @description
 * Check if the value is Object
 *
 * 不包含 Function 类型
 */
export declare function isObjectLike(value: any): value is Dict;
/**
 * @description
 * Check if the value is Primitive
 */
export declare const isPrimitive: (value: any) => value is Primitive;
/**
 * @description
 * Check if the value is Dict
 */
export declare const isPlainObject: (value: any) => value is Dict;
export declare function isString(value: any): value is string;
export declare function isEmptyString(value: any): value is '';
export declare function isBlob(value: any): value is Blob;
export declare const isEmptyBlob: (value: any) => value is Blob;
export declare const isSet: <T>(value: any) => value is Set<T>;
export declare const isEmptySet: <T>(value: any) => value is Set<T>;
export declare const isMap: (value: any) => value is Map<any, any>;
export declare const isEmptyMap: (value: any) => value is Map<any, any>;
export declare const isEmptyObject: (value: any) => value is {};
export declare const isEmptyBuffer: (value: any) => value is Buffer;
/**
 * @description
 * value is `undefined or null or [] or {} or '' or 0` or EmptyBlob or EmptySet or EmptyMap
 * @example
 *  isEmpty(undefined) // true
 *  isEmpty(null) // true
 *  isEmpty([]) // true
 *  isEmpty({}) // true
 *  isEmpty('') // true
 *  isEmpty(0) // true
 *  isEmpty(new Blob()) // true
 *  isEmpty(new Set()) // true
 *  isEmpty(new Map()) // true
 *  isEmpty(function(){}) // false
 */
export declare function isEmpty(value: any): boolean;
/**
 * @description Asserts that the value is void. `undefined`, `null`
 */
export declare function isVoid(value: any): value is void;
/**
 * @description 判断是不是 dev 环境
 */
export declare const isDevProcess: boolean;
/**
 * @description 判断是不是 prod 环境
 */
export declare const isProdProcess: boolean;
/**
 * @description 判断是不是非 prod 环境
 */
export declare const isNotProdProcess: boolean;
/**
 * @description 判断是不是 test 环境
 */
export declare const isTestProcess: boolean;
export declare const isClient: boolean;
export declare const isServer: boolean;