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645 BJavaScriptView Raw
1import { u8aToU8a } from './toU8a.js';
2/**
3 * @name u8aConcat
4 * @summary Creates a concatenated Uint8Array from the inputs.
5 * @description
6 * Concatenates the input arrays into a single `UInt8Array`.
7 * @example
8 * <BR>
9 *
10 * ```javascript
11 * import { { u8aConcat } from '@polkadot/util';
12 *
13 * u8aConcat(
14 * new Uint8Array([1, 2, 3]),
15 * new Uint8Array([4, 5, 6])
16 * ); // [1, 2, 3, 4, 5, 6]
17 * ```
18 */
19export function u8aConcat(...list) {
20 const count = list.length;
21 const u8as = new Array(count);
22 for (let i = 0; i < count; i++) {
23 u8as[i] = u8aToU8a(list[i]);
24 }
25 return Uint8Array.from(Buffer.concat(u8as));
26}