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@polkadot/util/is/childClass.d.ts

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567 BTypeScriptView Raw

1import type { Constructor } from '../types';
2/**
* @name isChildClass
* @summary Tests if the child extends the parent Class
* @description
* Checks to see if the child Class extends the parent Class
* @example
* <BR>
*
* ```javascript
* import { isChildClass } from '@polkadot/util';
*
* console.log('isChildClass', isChildClass(BN, BN); // => true
* console.log('isChildClass', isChildClass(BN, Uint8Array); // => false
* ```
*/
17export declare function isChildClass<P extends Constructor>(Parent: P, Child?: Constructor | null | unknown): Child is P;

1	`import type { Constructor } from '../types';`
2	`/**`
3	`* @name isChildClass`
4	`* @summary Tests if the child extends the parent Class`
5	`* @description`
6	`* Checks to see if the child Class extends the parent Class`
7	`* @example`
8	`* <BR>`
9	`*`
10	* ```javascript
11	`* import { isChildClass } from '@polkadot/util';`
12	`*`
13	`* console.log('isChildClass', isChildClass(BN, BN); // => true`
14	`* console.log('isChildClass', isChildClass(BN, Uint8Array); // => false`
15	* ```
16	`*/`
17	`export declare function isChildClass<P extends Constructor>(Parent: P, Child?: Constructor \| null \| unknown): Child is P;`