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chunks.ts
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chunks.ts
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/*
* Copyright 2019 LABOR.digital
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Last modified: 2019.11.10 at 20:39
*/
import type {List} from '../Interfaces/List';
import {forEach} from './forEach';
import {getListType, getNewList, setListValue} from './listAccess';
/**
* Similar to PHP's array_chunks method this method will take any kind of list of chunks that are
* not longer than the given "length".
*
* @param list The list to split into chunks
* @param length The maximum number of items to put into a single chunk
*/
export function chunks(list: List, length: number): Array<List>
{
const result = [];
const listType = getListType(list);
let chunk = getNewList(listType);
let count = 0;
forEach(list, (v, k) => {
setListValue(chunk, v, k);
if (++count === length) {
result.push(chunk);
chunk = getNewList(listType);
count = 0;
}
});
if (count > 0) {
result.push(chunk);
}
return result;
}