@ayonli/jsext/types/class.d.ts

A JavaScript extension package for building strong and modern applications.

/**
 * This module includes functions for dealing with classes.
 * @module
 */
import { Constructor } from "./types.ts";
import _mixin from "./mixin.ts";
/** @deprecated import `mixin` from `@ayonli/jsext/mixin` instead. */
export declare const mixin: typeof _mixin;
/**
 * Checks if a value is a class/constructor.
 *
 * @example
 * ```ts
 * import { isClass } from "@ayonli/jsext/class";
 *
 * console.assert(isClass(class Foo { }));
 * console.assert(!isClass(function foo() { }));
 * ```
 */
export declare function isClass(value: unknown): value is Constructor<any>;
/**
 * Checks if a class is a subclass of another class.
 *
 * @example
 * ```ts
 * import { isSubclassOf } from "@ayonli/jsext/class";
 *
 * class Moment extends Date {}
 *
 * console.assert(isSubclassOf(Moment, Date));
 * console.assert(isSubclassOf(Moment, Object)); // all classes are subclasses of Object
 * ```
 */
export declare function isSubclassOf<A, B>(ctor1: Constructor<A>, ctor2: Constructor<B>): boolean;