UNPKG

515 BJavaScriptView Raw
1// Copyright 2017-2022 @polkadot/util authors & contributors
2// SPDX-License-Identifier: Apache-2.0
3import { BN } from "../bn/bn.js";
4/**
5 * @name isBn
6 * @summary Tests for a `BN` object instance.
7 * @description
8 * Checks to see if the input object is an instance of `BN` (bn.js).
9 * @example
10 * <BR>
11 *
12 * ```javascript
13 * import BN from 'bn.js';
14 * import { isBn } from '@polkadot/util';
15 *
16 * console.log('isBn', isBn(new BN(1))); // => true
17 * ```
18 */
19
20export function isBn(value) {
21 return BN.isBN(value);
22}
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