/** * DevExtreme (core/utils/type.d.ts) * Version: 25.1.7 * Build date: Mon Nov 10 2025 * * Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/ */ /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isBoolean(object: any): object is boolean; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isDate(object: any): object is Date; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isString(object: any): object is string; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function type(object: any): 'object' | 'array' | 'string' | 'date' | 'null' | string; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isNumeric(object: any): object is number; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isFunction(object: any): object is Function; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isExponential(object: any): object is number; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isDefined(object: T): object is NonNullable; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isEvent(object: unknown): object is Event; // eslint-disable-next-line @typescript-eslint/no-unused-vars /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isObject(object: unknown): object is object; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isEmptyObject(object: any): boolean; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isPlainObject(object: any): object is { [key: string]: any }; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isPrimitive(value: any): value is string | number | boolean | undefined | symbol | null; // eslint-disable-next-line @typescript-eslint/ban-ts-comment, @typescript-eslint/prefer-ts-expect-error // @ts-ignore: globalThis was introduced in TypeScript 3.4 /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isWindow(object: any): object is (Window & typeof globalThis); /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isRenderer(object: any): boolean; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isPromise(object: any): object is Promise; /** * @deprecated Attention! This type is for internal purposes only. If you used it previously, please submit a ticket to our {@link https://supportcenter.devexpress.com/ticket/create Support Center}. We will check if there is an alternative solution. */ export declare function isDeferred(object: any): boolean;