Jaco
7765476a26
* Use bitwise not as Math.floor replacement * No objectSpread in extractTime * Flatten extractTime calls
36 lines
825 B
TypeScript
36 lines
825 B
TypeScript
// Copyright 2017-2022 @polkadot/util authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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/**
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* @name arrayChunk
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* @summary Split T[] into T[][] based on the defind size
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* @description
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* Returns a set ao arrays based on the chunksize
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* @example
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* <BR>
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*
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* ```javascript
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* import { arrayChunk } from '@polkadot/util';
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*
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* arrayChunk([1, 2, 3, 4, 5]); // [[1, 2], [3, 4], [5]]
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* ```
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*/
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export function arrayChunk <T> (array: T[], chunkSize: number): T[][] {
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const outputSize = Math.ceil(array.length / chunkSize);
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// noop for the single-split case
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if (outputSize === 1) {
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return [array];
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}
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const output = Array<T[]>(outputSize);
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for (let i = 0; i < outputSize; i++) {
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const offset = i * chunkSize;
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output[i] = array.slice(offset, offset + chunkSize);
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}
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return output;
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}
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