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https://gitlab.com/openstapps/openstapps.git
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31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
/*
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* Copyright (C) 2022 StApps
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/**
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* Create an object composed of keys generated from the results of running
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* each element of collection thru iteratee. The corresponding value of
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* each key is the last element responsible for generating the key. The
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* iteratee is invoked with one argument: (value).
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*/
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export function keyBy<T>(collection: T[], key: (item: T) => string | number): Record<string, T> {
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return collection.reduce(
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(accumulator, item) => {
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accumulator[key(item)] = item;
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return accumulator;
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},
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{} as Record<string | number, T>,
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);
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}
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