mirror of
https://github.com/pezkuwichain/pezkuwi-common.git
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Kurdistan Tech Ministry
ec06da0ebc
- Package namespace: @polkadot/* -> @pezkuwi/* - Repository: polkadot-js/common -> pezkuwichain/pezkuwi-common - Author: Pezkuwi Team <team@pezkuwichain.io> Core packages: - @pezkuwi/util (utilities) - @pezkuwi/util-crypto (crypto primitives) - @pezkuwi/keyring (account management) - @pezkuwi/networks (chain metadata) - @pezkuwi/hw-ledger (Ledger hardware wallet) - @pezkuwi/x-* (10 polyfill packages) Total: 14 packages Upstream: polkadot-js/common v14.0.1
30 lines
944 B
TypeScript
30 lines
944 B
TypeScript
// Copyright 2017-2025 @polkadot/util authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Class } from '../types.js';
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import { isClass } from './class.js';
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/**
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* @name isChildClass
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* @summary Tests if the child extends the parent Class
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* @description
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* Checks to see if the child Class extends the parent Class
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* @example
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* <BR>
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*
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* ```javascript
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* import { isChildClass } from '@pezkuwi/util';
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*
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* console.log('isChildClass', isChildClass(BN, BN); // => true
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* console.log('isChildClass', isChildClass(BN, Uint8Array); // => false
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* ```
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*/
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export function isChildClass <P extends Class> (Parent: P, Child?: unknown): Child is P {
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// https://stackoverflow.com/questions/30993434/check-if-a-constructor-inherits-another-in-es6/30993664
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return isClass(Child) && isClass(Parent)
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// eslint-disable-next-line no-prototype-builtins
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? Parent === Child || Parent.isPrototypeOf(Child)
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: false;
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}
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