Function: objectParentConstructor()

Call Signature

objectParentConstructor<ClassConstructor>(target): Function | null

Get the parent class of a class: the one it extends.

Type Parameters

ClassConstructor

ClassConstructor extends Function

Parameters

target

ClassConstructor

A class. The types only accept a class, but an object passed with a cast gives its class's parent (objectParentConstructor(new Admin() as any) is objectParentConstructor(Admin)).

Returns

Function | null

The parent class, or null for a class which extends nothing (a base class, Object), a plain object, or a function which is not a class (an arrow function).

Example

import {objectParentConstructor} from 'lakutata/utils'

class User {
}

class Admin extends User {
}

console.log(objectParentConstructor(Admin) === User, objectParentConstructor(User))
//true null

Call Signature

objectParentConstructor<ClassPrototype>(target): Function | null

Get the parent class of a class: the one it extends.

Type Parameters

ClassPrototype

ClassPrototype extends Object

Parameters

target

IConstructor<ClassPrototype>

A class. The types only accept a class, but an object passed with a cast gives its class's parent (objectParentConstructor(new Admin() as any) is objectParentConstructor(Admin)).

Returns

Function | null

The parent class, or null for a class which extends nothing (a base class, Object), a plain object, or a function which is not a class (an arrow function).

Example

import {objectParentConstructor} from 'lakutata/utils'

class User {
}

class Admin extends User {
}

console.log(objectParentConstructor(Admin) === User, objectParentConstructor(User))
//true null